If the D&D name poisoned the well, which I don't buy, then having it in there at all would have poisoned it just as badly. As it was a multimillion dollar marketing scheme to raise brand awareness, there's no way they'd have avoided the brand's name.
Nope. Fantasy Guardians of the Galaxy is a much better way to go than a LotR or GoT knockoff.
Fantasy movies in the top 100 box office films of all time, excluding Lord of the Rings and Harry Potter: Frozen 2, Frozen, Beauty and the Beast (2017), Pirates of the Caribbean: Dead Man's Chest, Aladdin (2019), Pirates of the Caribbean: On Stranger Tides, Alice in Wonderland (2010), Pirates of the Caribbean: At World's End, Doctor Strange in the Multiverse of Madness, Shrek 2, Twilight: Breaking Dawn 2, Coco, Shrek 3, and Pirates of the Caribbean: Dead Men Tell No Tales. And depending on how you categorize superhero movies, there's a dozen more right there. Some of those are serious, some decidedly not.
You sure about that?
Wheel of Time and Rings of Power are exceptions to that "well regarded" bit.