DND doesn't need WoTC. RPG players don't need WOTC. WoTC needs money to stay in business. This doesn't make them villains.
The terrible secret of DND and all RPGS is that you don't need more than one set of rules per group, once people buy the core rules of an RPG they have invested all the money they need to play the game for decades. I've been playing D&D for decades, I don't need to ever buy another thing from WoTC to play DND so they have to work hard to get more money from me or look elsewhere for someone else's money.
The desire for the company to monetize DND more doesn't surprise me or scare me: if WoTC stops selling products they stop being WoTC. They (and more-so people before them) successfully sold me things in the past so (as above) they really have to step up their game or find new customers. Neither of those two things is bad for DND.