Needing alot of rune pages for several champs has always been a thing.
When you're playing a mage, sometimes you want that scaling CDR blues, sometimes you want MR blues. Sometimes you might want armor yellows. Thats just the bare-minimum for one role on one champ.
Lets say your secondary is ADC. You want flat armor, and MR depending on if they have a MR threat or not. You could take scaling MR, or some mana regen. Or a mix of any of these.
Thats easily 6+ pages just for 2 roles.
If you didn't really change your rune page before, thats basically like just taking a default rune page now. You'll be more or less fine if you dont want to take anytime to customize your rune pages.
Yeah its sub-optimal, but doing so was also sub-optimal before, and you still did it.