@RuinExplorer ..
What I think is that, ideally, D&D need to PICK A GODDAMN LANE < honks horn repeatedly >.... Dives over explorers hood. Hey My trainer is on your hood ornament. !

I wish but nearly every time some brings up limiting choice in a setting or mainly at table (AKA picking a lane); they get told they are having bad wrong fun. Or worse. Then you either have the general population/buyers wanting everything published to be "OFFICIALLY" in the realms.
Look at Eberron Rising War Nov 19,2019 which had Artificers. Which I have never heard of. Less than a year later Tasha's Nov 17,2020 releases Artificers into the wilds of the Realms.
It seems a lot of people have forgotten A DM can limit choice. But the general populace or the market wants no limits. Or have I totally missed your point?
Man if the Forgetton Realms kitchen sink gets any bigger I will be able to roll my Ford Ranger through for a quick wash.