Why were all of Quinn's QoL changes reverted?

Quinn was strong quite some time ago, mainly due to items she has synergy with receiving incremental buffs as well as the meta game shifting in her favor (no tanks, overall weaker marksman, etc.).

Crit items have been nerfed, overall rune damage has been decreased, and some tanks and bruisers have received necessary buffs, bringing them back into the meta.

Now why is this grounds to hit her so hard what with her passive damage, base armor, and attack damage scaling? Did her scaling really need to be hit as well? Not to mention the 3 base attack damage she traded for her scaling buff (AD growth from 2.4 - 3) with the changes has not been given back either, effectively making her weaker than she was pre QoL change.

The problem with Quinn before the QoL changes was how runes reforged didn't really complement her in the way old rune system did, and that she would fall off way too fast. Now it's hard for her to fight the bruisers and tanks Riot has made viable again? Can that nerf be reassessed, or at least can she receive her 3 base AD back?