Well, there is a fine line... If you dont offer paid players an advantage then nobody will spend the money. On the other side, if paied players have to big benefits, it will scare away non-payers, making this game, which has already to few players to be really fun even less attractive for unpaid players and therefore also for paid players.
Currently basically everyone with few exceptions agree, that the upkeep advantage is by far over this line. Virals have already a whole bunch of advantages like capturing, great native ships, the highest variety of available ships, the collection of the best available ships, and an incredible build rate even for balanced stacks without the disadvantages of the other paid races like no exploration or no money.
And on top of that upkeep-free high-buildrate high-dammage ships is a tiny little bit too much....
Somehow you remind me on somebody driving in the wrong highway direction: He also complains, that everybody except himself is wrong.....