You keep ignoring the fact that "being easier to place" doesn't translate to "accomplishing the same task." If I only have enough UP for Gellius but not Nadia, dropping him first won't stop a rush of 6+ goblins.

By your logic, Solano is automatically superior to every mage because she can be placed down first, ignoring that she has a ten-second startup time or that she has a cooldown period. Obviously a mage isn't your first choice to place down in any map, but you'd like to ignore all that whenever it fits your argument.