James:
As a high handicapper, I think it's perfectly fine for a course to present one very difficult, longish, all-carry par 3 if there is at least some option for bailing, even if that's a bunker. I think a 185-yard or so hole that's entirely carry, with absolutely no place to bail (typically over a pond or marsh, with the green sited directly beyond the far edge of the hazard), is one that gets beyond the normal ability of many high handicappers. But the hole you describe seems to at least provide a place for a high handicapper to bail.
(Most high handicappers I know would probably approach such a hole this way: Geez, 185-yard par 3 that's all carry. I don't have that shot. But, I can probably put a tee shot in that bunker, to avoid the quarry and death. Once in the bunker, the high handicapper's only thought is: get out. If you succeed, you're likely left with a two-putt for bogey, or -- if you get out of the bunker but not on the green -- a chip and two putts. With the former, you get a bogey -- a result most high handicappers, standing on the tee, would take in a heartbeat. With the latter, they end up with a double-bogey -- not great, but not the worst thing, either, as this hole may be the toughest single hole they encounter during the round ((smart high-handicappers can maneuver their way around most par 4s and 5s to avoid similar sorts of shots)). The bunker, in that sense, provides the relief the high-handicapper is looking for on a very tough tee shot. What the high handicapper is hoping to avoid is the shot in the quarry that forces them to reload, and end up with a huge number.)