Armor Penetration and Rune Diversity

First off, I would like a serious discussion on this issue.

I have been roaming the forums to see many players complaining about (especially and and . These Items with and/or combined with Armor Pen marks and Armor Pen Quintessence give too guaranteed damage. These items and runes are still so cost effective that it makes crit builds less viable (also there is no like-item that will stop an ad from stacking Armor Pen like how it reduces crits, which may or may not even occur due to RNG).

Second Topic of conversation:

Seals and Glyphs give 0 diversity to adc's in terms of options and the stats that they give are plane pathetic (viable options include MR, Armor and the occasional Cooldown Reduction). Basically, defensive runes in seals and glyphs are typically more efficient to get instead of harder carry options. Similar problems exist for AP champions in the Marks and Seals areas in terms of offensive options.

Rant (This part is not necessary to read): Can we please get a rework on rune diversity? I got extra IP layin around I wanna have more fun theory crafting and testing different build diversities. Upvote this post if u are tired of the same build every game on certain champions or even 2 different builds being viable on certain champions. Many champion kits could benefit from the potential of dicing up the rune diversity and early game stats.

Tell me what you all think!

TL;DR Armor Pen is OP and ADC Rune Diversity could use some work in the glyph seals area. Make builds diverse again.