Just to also explain a bit on the purpose of why people chief active players: is mainly used to remove hammer/anvils during endgame stages. It's a lot easier to completely wipe out an original army with a bunch of fakes and 2 attacks (3-3 senators) than say send a bunch of fakes and insta-cata a city (with 20 to 21 waves, assuming the goal is to wipe out a very large original army.)
Also with senators, if the distance is a large enough distance they will land on the same second, versus catapult waves which will break into smaller sections and you may need a seperate hammer for each second.
Conquering inactives isn't really for the "resource value" as well, it's for those players who do not want to waste time "field clicking" the first 162 building levels of resources, and just be bothered with those 18x level 9 -> level 10 upgrades. Also main building, warehouse, trade route management. It gets messy once you reach 15+ villas and have done it time and time again.
I'm against this idea of creating more easier conquerable targets, unless they turned to natars and have more defense than 15cropper natars, maybe something proportionate to the population size. (a 1k pop city would have 5x the amount of troops a normall 199pop natar would)