To avoid beating the dead horse that is my idea... I'll move on from nitpicking with draco, especially since I would be nitpicking his interpretation rather than the main thrust of his argument. Arguing transparency is irrelevant when nobody likes the base concept anyways.
I am not opposed to throwing out armor completely OR except for a few ships. Although I came to a different conclusion, I also agree with the interpretation of the current relative weight between armor, hp, and attack boni. And, if we change topics, I can throw out a few ideas regarding a size system.
I don't see armor rotters adding a damage multiplier as being either easily estimated mentally or transparent.
On the other hand, simply by giving armored vessels more health, I forsee a tedious anti-fleet battle, especially apparent given the absence of any ways to bypass it. Like it or not, Armor piercing is currently very common and particularly useful with low damage turrets (lightning) and raid starships, and armor is quite prevalent on player turrets. Keeping a carefully hand chosen selection of armored and anti-armor units in the game according to the OP does seem like it would be simpler and quicker to balance than throwing out armor wholesale. If we don't replace with anything fundamentally 'fun' or at least meaningful, a more 'elegant' no armor solution seems a total waste of time and effort compared to the OP. I'm not opposed to a new mechanic such as size, but I currently favor the OP as mostly clearing the slate and leaving the field mostly uncluttered for future innovation, without introducing the most new headaches. I kind of see it as a stepping stone along the path to some nebulous far future rebalance that considers 'softening' the counters, reducing the hull-type abundance, introducing some new mechanic such as a size system or other.
I just don't see the gain in rebalancing anti-armor, armor rotters, inhibitors, everything, unless we have something ready to sweep in new value.