I have played RPGs for nearly 40 years now. I do not feel that WotC, specifically, has decided to ignore me. Or wants me out of gaming. Or doesn't care about me because I'm old. Take that as you will.
And if we wish to discuss whether the current WotC under the current corporate ownership might be focusing on this or that more than catering to some ideal of the old guard, let's remember the question: what old guard? Because there was no single old guard. Games were played in all sorts of ways, whether we're talking 10, 20, 30, 40, or more years ago. My first DM talked about it. We saw it in Dragon Magazines (in The Forum segment -- talk about old school snail n' paper stuff!). I saw it in playing with different DMs, or playing in different groups. Even back then, if they felt the game didn't cater to exactly what they wanted, they understood (IME, I'm sure some did not) that D&D was a core framework and they could houserule, or would buy 3PP supplements, or incorporate something from Dragon to massage it to something they (and hopefully their group) preferred.
D&D has never stayed still. It has shifted and grown and adapted throughout its long and storied history. And we don't need to go far in its life, we can start with the shift from D&D to AD&D and the changes that wrought. And even then, when playstyles shift and something new is added, included, and maybe even emphasized, it doesn't mean our previous or preferred playstyle is automatically under siege. It can be easy (or at least addictive) to get used to being the 'centre of attention' and thus for some when attention shifts or is split or diminishes even 10% it feels like a 200% reversal and cause for great alarms and lashing out. Yet it could just be a broadening. A growing of the hobby. And maybe it turns out that what I thought was the norm (my playstyle) wasn't, and/or isn't anymore. How facinating!
I have both invited players to try things more akin to how I used to play, as well as invited myself to try things more akin to how others play. (And again this has been going on with me for 40 years.) I've written supplements for the game (and still selling them). And I'll happily whip out a "back in my day" story/parable/opinion if anyone wants to hear.
My favourite is saying, during a session, "We're going to have to 1E this!" to start us coming up with some clever/crafty/creative/sneaky solution to our current predicament.
