what if crit and armor pen switched places?

DISCLAIMER. this is just a thought process that i wanted to share with the community. in no shape or form do i believe this change should be implemented its food for thought. and perhaps a direction riot could consider.

now hear me out here for a second and let me explain why i came to that thought.

the primary role of an adc is to provide dps to take down tanks and turrets, the primary role of an assasin is to take down adc and mages aka squishies high priority enemy champion targets.

The combination of crit, attack speed, AD AND lethality/armor pen allows ADC to effectively burst anything in the end game be it tank or squishy. The combination of AD, lethality/armor pen AND cdr allows most assasins to dps next to being to being (suposedly) good at burst.

A while back adc were building lethality/armor pen and close to zero crit chance the role actually felt healthy to me (and this is coming from a tank mains perspective). crit is giving adc access to large amounts of burst THAT THEY SHOULD NOT HAVE. crit does not work on towers so why do adc have crit, why did they have this stat for so long?

when a stat that when used by itself is good at taking squishies? shouldn't assasins be using this stat instead of lethality/armor pen as they are currently?

lethality and armor pen work on the most important objectives, aka towers. so if you look at just that shouldnt adc be building that mostly? and then we can give towers some massive armor ( the buff the rift really needs)so that only adc can really do any substantial damage to towers.

so how would this all work?

Crit would only apply to spell/kit mechanics and no longer to auto attacks. Lethality/armor pen would only apply to auto attacks. Crit would become a mechanic attached to assassin kits and items with crit will then amplify said damage.

this would also mean that items would have to be reworked into having lethality/attackspeed instead of crit/attack speed. would also need a rework since this is mostly build on bruisers.

like I said in the beginning just food for thought, but i figured why not bounce it off into the forums.