Kdub has exposed the meat of the issue here. OP's complaint is valid but there are several other more salient points of contention. I'd like to see Kdub's list broken out into its own discussion.
While his list certainly has valid points, I think everything from wave 1 and possibly wave 2 gets a pass. You simply can not achieve the level of balance you guys are talking about before a game is released and played in the wild. No amount of playtesting g is going to catch everything so the first wave or two you have to expect to have some imbalances.
You absolutely can achieve that level of balance, but it requires some properly applied advanced mathematics.
Unfortunately that capability is not cheap in the marketplace. Most game companies (FFG absolutely included) are not known for hiring technical eggheads with the corresponding salary.
I know some Maths majors who'd love to be paid above minimum wage, let alone a competitive corporate salary.