When we talk about the clutch and grab era like this, it's often in the context of saying players were fouled repeatedly with no penalties called. Pittsburgh played 83 playoff games between 94-95 and 00-01, and had 376 power play opportunities, or 4.53 per game. They scored 62 power play goals, or about a 16.5% conversion rate. In the regular season, they converted on 19.7% of 4.58 power play opportunities per game. They scored 3.37 goals per game in the regular season during that time, and 2.72 goals per game in the playoffs, as they only scored 226 goals in their 83 playoff games. Jagr was 44+51=95 in 77 games, or 19.5% G% and 42.0% P%, completely respectable and reasonable numbers for a player of his caliber. [They scored 17 goals in the 6 games he missed in the playoffs.]
In contrast, Edmonton's played 73 games (so far) in McDavid's 4 deep runs. They've had only 224 power play opportunities, or 3.07 per game, but they've scored 69 power play goals, for a 30.8% conversion rate. In the regular season, they had 2.95 power play opportunities per game, and scored on 27.4% of them. They've scored 274 goals, or 3.75 per game in the playoffs, compared to 3.54 goals per game in the regular season. McDavid's been 32+95=127, or 11.7% G% and 46.4% P%, again completely reasonable numbers for an elite player.
Pittsburgh also had a whole lot more roster turnover, as Mario Lemieux's 41 games was the 5th most games played by a Penguin during that time - Jagr had 77, Ian Moran 61, Martin Straka 48, Robert Lang 45. Five Edmonton players have played all 73 games (RNH, Kulak, McDavid, Draisaitl, Bouchard), and to get to 41 games played, you have Ekholm at 42 and Corey Perry at 39 as the 14th and 15th most games played.
After recounting all of those stats, my original point has been a bit lost. The clutch and grab era might have a reputation of open season on star players, fouling them repeatedly, but when you look at power play opportunities, there were many more during that era than there are nowadays. Pittsburgh spent about 3 minutes more per game on the power play than Edmonton has in the playoffs, and it is undoubtedly easier to score on the power play than it is at even strength. They didn't do as much with it, evidenced by Edmonton scoring more power play goals in 150 less opportunities.