I agree, but . . . .
This is one of the problems I have with some D&D settings, both official and third-party. The drive to include player options for every class, no matter how poor the fit. The classic D&D monk, IMO, doesn't belong in a Greek-inspired setting. Neither do paladins, bards, and druids for that matter.
Sure, you can torture the concept a bit to make it work, like turning the monk/martial artist into a Spartan and/or Olympic Athlete . . . . this approach broadens classic D&D class archetypes too broadly to almost become meaningless.