Yes Gretzky team would score a lot more goal than the next best team in that scenario.
It seems unlikely though for several reasons.
! Gretzky would be hard pressed to be scoring goals like he did in the 80s with the type of equipment and goaltending styles.
Also the second main reason falls partly into the Pens season listed below which I will tackle in 2 parts.
First off the Pens scored 109 PPG on 420 PP opportunities and the best PP in recent times was the McDavid Oilers in 22-23 where they scored 89 goals in 275 PPO.
The second most PPG were the Sens who scored 72 goals in 306 PPO.
But to me the biggest factor is the lack of blowout games and the run and gun style, since it really in't condusvie to winning hockey in the post expansion era.
In addition to the large number of run and gun games there was a smaller number of tight shutout, 1 and 2 goal games.
Gretzky famously once said something to the affect that the Oilers would win games 8-6 and that's kind of how they played and that's how Mario's teams played and they didn't sacrifice defense, they generally didn't play defense and tried the 7-5 stye as well.
In 95-96 the Pens scored these totals
10- one game (Mario had a 1-6-7 line that game)
9-4 times
8- 5 games (including a 10-8 loss to San Jose)
9- 7 times
There just aren't as many runaway games and remember when Tage was sat down after scoring 5 goals early in a game, showboating is just frowned upon much more now than in the past.
Lemieux penguins in 1996 scored 362 goals, almost 40 more than the Colorado-Detroit powerhouse despite Mario missing 12 games. In the game mario played the Penguins scored at a 4.73 goal per games average, that a 387-388 goals season when no one else scored 330 goals, even those Wings and Avs. The % of goal team points analysis I see(maybe not by you) often seem to diminish a great player making his team scoring a lot of goals in that process and how hard it is to gain a very large percentage because you add goals to your team.
The thing is that mario played 40 home games that year and 30 on the road
Home 40-44-60-104
Road 30-25-32-57
Also in the following year we see Mario with a line of 76-50-72-122 and the team scored 285 goals and only 74 on the PP in 339 opportunities as league dynamics changed that much in a single season apart.
Instead of 73 PPP Mario had 37.
It's also unlikely that Mario would be granted the option of cherry-picking in his limited PK role today as he wasn't a very good defensive player.
And during McDavid 105 pts seasons the Oilers scored "only" 183 goals at that kind of pts share you kind do 180 pts on a 314 goals team.
Sure but that wasn't any regular kind of regular season either with long road trips, games were back to back home games against the same team, sometimes 3 games in a row against the same team ect.... so it's to extrapolate that into a regular season.
Much like Ovechkin winning the Hart in 12-13 in an unbalanced schedule.
Also glancing back at the 20-21 season and looking at the teams in the division in the year before they were the 12th,18,19,23,25 and 30th best defensive teams the season before.
Of course things do change from season to season but it seems like McDavid had a bit of a perfect storm here.
How many more goals than the second best offense in the nhl you think an peak Greztky team score ?
Depends entirely on the team but a guy like Farkas might be able to watch some film and break down in a WAG (wild assed guess) kind of way on how his goal scoring translates between the eras as I think his playmaking and hockey sense would translate better but I doubt that he would be a yearly Richard candidate even in his prime today.
I mean gretzky twice won the goal scoring title by close to 30 goals, would he even translate to winning 2 by 15 goals today?
That's very doubt full IMO.
During Gretzky's peak dozens of players every year scored at 20%+ shooting % since the 1976 seasons it's sometimes 1 or 2 guys and only more than 5 several times and never double digits even with more teams and players.
Alot of Gretzky's and to a lesser extent Mario's video game numbers came in best case scenarios conditions that would be almost impossible to replicate today.
If one were to guess maybe 30 or 40 more goals at best and even that's doubt full than the second best team but even then it would depend on a lot of factors.
There just seem to be quite a few factors that the numbers would indicate that no one is scoring 180ish points in the NHL last season from any peak player in history IMO.