I heard you like variants, so I put variants on your variants' variants so you can vary while you vary!
Now for real, I make variants on my artworks. Making 4 variants is fine. Making 16 is a pain in the ass. Now.... 63??? Holy fuck, someone give Mixplin a goddamn medal because they deserve one!
Base +6, Hat Wearing Griffin +2, Quoterox +6, kageganon -6
A medal for patience, I guess. And for the most Layers in Photoshop XD
I wouldn't say it's a waste of anyone's time. More variety means there is one set which will best suit you, somewhere in there. You can always look at the first half a dozen, get your fix and move on without checking the other 60.
Waste of time for who? Artists that do it like it, and those that don't like it can just not save the variants they don't want, or better yet, look at one of the many other thousands of artists.