You seem to have an problem with reading comprehension. People do not use this term to describe their own games, you don't see this term used to describe products. It's not a thing.
First of all, high marks for circlequoting, by referring to felipepepe who is one of the autistic Codexers who have tried to push this meme. I'm surprised you didn't just quote yourself using that term.
You should try your hand and Wikipedia editing. You'll go far, I can tell.
Meanwhile Richard Cobett and Baff are what exactly? ... and what games have they created that they call "blobbers". None, as far as I can see.
In the end you just sink your own argument by pointing at Micheal Gridman's Twitter, where he describes himself as: Making a book about first person dungeon crawlers: DRPGs, blobbers, gridders.
Blobbers is according to this guy, on the same level as "DRPGs" and "gridders", i.e. weird and obscure terms, nobody uses outside some fringe groups who are each trying to force their own particular pet term.
So while you can use the term first person dungeon crawler to make a useful shorthand to describe a game, the other terms are not useful, because words are social constructs and those words aren't accepted.
You might as well just call this a Type A game. It's just as descriptive and useful as "blobber" or "gridder" or "DRPG"... i.e. not at all.
Those are commonly referred to as ARPGs or Action RPGs.
Should they be called "dollers" because you're playing with a "paper doll"? No, of course not. Because that's both stupid and only witty to dads.
