You're just re-enforcing bad logic/player assessment though.
Your "guy wins art ross by 1 point vs loses by 1 point" argument....well, let's look no further then last season.
For me - both Kucherov and MacKinnon had historic peak seasons last year. Kucherov 140 and 144 points - tremendous. MacKinnon's season isn't worthless because he lost the Ross by 4, even ignoring the hart. To me - both seasons are very comparable, and add an ~ equal amount to each player's resume. They're both great seasons because they outscored the pack, guys like Panarin, Pastrnak etc by very big margins.
Ignoring the hart - MacKinnon's season last year is >>> Jamie Benn's season where he won the Ross.
So no - +/- 1 goal for Ovechkin, or +/- 1 point in a season shouldn't be a big deal.
Ovechkin's resume is extremely strong overall. I don't personally think he's #5 all time (I have him around 10th), but if someone values goal-scoring and longevity a lot, they might have him 5th. Scoring an extra career goal or two or 20 career-wise shouldn't affect his rank.
Well sure, if someone had so extreme a point of view as "893 goals = he stinks, 895 goals = he's the greatest" that would be quite silly indeed.
To say there's nothing significant about being Number 1.... in any scenario, being Number 1 is significant. Out of everyone in the League, in a given season or all time, you were the one that did something the most. That's a big deal. I see a big movement to try and de-emphasize and downplay it, why, I'm not so sure. But it's a hyper focus on incrementalist impact over the big picture significance that starts from Goal #1 of Ovechkin's career, not Marginal Goals 864-895.
Aside, the marginal goals probably deserve more credit than given. Having 19 points in 15 games at Age 39 is incredibly impressive. Even at this current number, most 39 year olds aren't going to be able to limp out 30 more goals. The marginal impact really does speak to how difficult a record like this is to break and how impressive it will be if it happens.
What that means for a perceived "master ranking" of players... all of this is subjective stuff at the end of the day. People talk like it's so dogmatic. It's the stuff of bar debates and online discussions, it's not so serious. So it can mean a different thing for different people. Understand that for you, the focus on marginal impact of a 1st or 2nd in various contexts is essentially just the marginal impact of the difference itself, the same as it would be if someone scored 27 or 28 goals in a season. Your perspective is understood and valid.