The reality is that a whole lot of people strongly disliked 4E, for a variety of reasons.
As evidenced by the lengths they were willing to go in the edition war, yes.
The failure to deal with as an honest issue and instead live in the whole "it is just h4te" mentality hurt the ability for the game to grow and adapt to differing ideas.
It'd be more accurate to say that it was caving to one side of the edition war that hurt the ability of the game to grow and adapt to differing ideas. That contributed to D&D failing to achieve the breakout growth it was aiming for (though WotC's inability to roll out any of its vaporware also had a lot to do with it), and why it lost to Pathfinder in one quarter by suddenly changing direction and muddling presentation with Essentials, and why it tapered off production & went out of print years early - and, most conclusively, that's why it's back to so closely resembling what it was 15 years ago.
But that's not the point. The point was that /even with the edition war raging/, D&D still beat out Pathfinder until it suddenly changed direction, and even then, recovered until it started winding down the pace of releases. And, even when Pathfinder won in the miniscule in-store-sales of TTRPGs Icv2 measure of the market, and D&D went on hiatus for two years, ceding the whole thing to Pathfinder, it was D&D that remained the brand with mainstream name recognition. No one ever played Pathfinder on Parks & Recreation or the Big Bang Theory.
Whatever. The point is, you can't talk about industry leaders and their resources without keeping the current and the EVOLVING market in mind.
That's just it, the market /isn't/ evolving. It's dominated by a 40 year old game and it's 15 year old clone. The most energized segment of the market is a revival of the play styles typical of that 40yo game's earliest iterations. If anything, the TTRPG market is atavistic.
But maintaining brand identity is quite difficult and it can vanish remarkably fast.
D&D has done little to maintain a mainstream identity since the fad (and controversies) of the 80s, but it's held on all this time. Really, though, the mainstream name recognition D&D has isn't really a brand identity, it's the identity of the whole TTRPG hobby in the minds of the mainstream. WotC might be trying to leverage it into a more profitable franchise with a movie deal, or some faster-growing segment of the hobby games market (half a billion compared to the 15 million for TTRPGs, though WotC's CCGs already have a big slice of that), or an MMO ($11 billion market) or whatever. Doing that isn't dependent on D&D winning the TTRPG market though, just on it remaining recognized by the mainstream, which it is, and that shows no sign of changing.
Unless the BAP website goes viral and people start picketing Piazo...