I tend to play FRUA games as much (or more) for the story and graphics as for the combat dynamics, though I might be in the minority.
In principle I would not mind a game that assumes "Novice" as the default setting. A couple of caveats, though. First, the documentation should probably make it very clear that that is the designer's intention. Secondly, if the game was too hard (like, if I couldn't win what seem to be run-of-the-mill battles) I might give up after a while (or, if I am really enjoying the game, fiddle with the diff.tbl to give myself the option to "win"). Thirdly, I don't usually stack my characters' stats so they are straight 18s, so if that is expected then, again, the documentation should make that clear.
Anyway, I certainly wouldn't refuse to play such a game as a matter of principle.
But if the intention is simply to make a game where the difficulty level is not adjusted downwards, you could just state in the documentation that it is not intended that players should adjust the difficulty level. Then, if the game is too hard for some players at Veteran level they would have the option of turning it down and keeping on playing (in the knowledge that that does not accord with your intention), instead of giving up.