I don’t agree that lots of terrain is a test of a players generalship. It may test one part of their understanding of the rules, but if it is seriously asymmetrical then it tells you nothing. The classic ancient wargame, chess, has no terrain at all.
What we all agree is that lots of terrain can look very nice. The danger is that you’re saying “I want lots of terrain on my table. How can I justify it even if it isn’t historical?”