i think people just like numbers, the more numbers the better for them. The attributes literally didn't do anything (in oblivion) that the health/magic/staminia thing of skyrim didn't. Morrowind was a little different but it just encouraged you to spam (or train) skills to max out the few key attributes so your character wouldn't svck
Even now you can see it with fallout 4's changes. It looks like the perks will do everything and more that skills did, but because it doesn't have a 100 numbers in it is "dumbing down"