I'm sure I am influenced by that bias, but my perspective is from someone who watched mid-2000s classics get forgotten as the 2010s rolled on, as the game market ballooned and it was the sequels that got mega star status with their "refined" appeal to a mass audience which had even less patience for novel if jank experiences and legacy titles were left in the dust.

As for it making more sense to remake games, my opinion on such things is that they are essentially cash grabs and should be limited to games that either had good ideas but highly flawed execution the first go around and it essentially can't be rehauled without being remade, or they're pre-modern so to speak. That is to say, so old they can't even fit in with their control schemes or gameplay loops, or the presentation was shoddy even for the time. I do not think Oblivion qualifies for either because despite its flawed execution, that is more a problem with lazily automating the level up experience, the tedious combat, et al that can more or less be more fine tuned and rebalanced, among other questionable things. But my point is that Oblivion is fine as it is despite aging less gracefully.

And I never got the complaints against the graphics. Yes, the potato people exist, but not every character model is awful. I even made a rather decent looking Nord woman without mods.

EDIT:

I should also probably mention that remakes are fine if they're meant to replicate the feel of the old game and are simply modernizing it, like what they did with Perfect Dark.