a good chunk of Ed Greenwoods market was wrecked by the Spellplague, others got fed up with the poor support in 5e for Realms outside the Swordcoast and moved on, others don't know about dmsguild, and huge part of the rest only read the novels. He's had best selling novels, but WotC just absolutely screw him over market wise and in violation if the original deal with TSR, stopped him from writing novels. It's absolutely disgusting how he's been treated. They are about to release a $100,000,000 movie that could be the first in a series that that could earn them $500,000,000 to billions, and Ed won't see 1 cent of that money.
But Hasbros a corporation, which at this point are just criminal organizations with enough fake legitimacy to get away with pretending they aren't crooks. We're leaving in the Shadowrun universe without the cool parts.