Pretty much the same reasoning will lead you to conclude that in-combat options don't matter either, since a good DM will tailor encounters to the party's capabilities anyway.
Indeed, the argument appears to overlook why any abilities matter, combat or not.
Originally Posted by ProsecutorGodot
If statistics are the concern for game balance I can't think of a more worthwhile person for you to discuss it with, LudicSavant has provided this forum some of the single most useful tools in probability calculations and is a consistent source of sanity checking for this sort of thing.