Even in video games many things commonly argued about here are even more commonly and much more aggressively argued in video game forums.
At the same time, you don't typically see people arguing that a game that lacks an "Iron Man" mode, or the pronounced difficulty of Dark Souls etc., as "not a video game" or not being valid contributions to their particular genre, whatever that might be. The Warlord--and a few other developments of 4e, whether you consider them "innovations" or not--are often so thoroughly disliked that people will go out of their way, will openly admit that they would deny themselves things they
like, in order to see these things don't become part of the game.
I'd also point out that, although I (and someone else, IIRC) was the one who mentioned cheese wheel healing, I was
not the one who introduced the comparison to video games. Someone else,
Imaro, specifically brought up video games, and their depiction of HP loss through physical wounds, as...well, I'm not sure. The actual statement was, more or less, "video games give gamers the idea that HP are defined as physical wounds, so the debate among TTRPG players (and D&D players specifically) may be meaningless to most people," with an IMO extremely strong implication of "thus we should use the common video game conception if we want to get more new players, so it will be familiar to them." I rebutted the idea that video games purely represent HP as wounds and healing as wound-removal with the very plain fact that two of the most popular games of the last decade allow HP restoration based on eating food. Skyrim has sold over 20 million copies, and even if half of them were duplicate purchases or bought by people who hate the concept of "cheese wheel healing," that's still 10 million people who are
completely okay with the concept of eating food to restore HP, even when those HP were explicitly lost by having a sword swung at you and
showing blood obscuring your vision.
Basically, Imaro's idea (as I understood it--not necessarily as it was meant!) was, "Video games are creating this perception of wounds as purely physical, and restored either by physical healing or magic." And my rebuttal was, "Given how two *very* popular games treat healing, I'm not sure this is actually a perception being created by games."
I, personally, think that D&D can stand to learn a lot from video game mechanics, tropes, and execution. At the same time, calling any tabletop game "an MMO on paper" or "videogamey" is pretty transparently an insult--it's just a different way of saying "it's not a tabletop game anymore."