I believe a much bigger issue would be the many levels that would actually be harmed by this "feature" because their first screens are extremely nonindicative of the level itself. And an even bigger one would be the people that would deliberately abuse it by making first screens with no relation to the rest of the level.
As LPChip pointed out, you
can make a level where you spawn on a shift to the REAL first screen of the level, but that would first ruin the older games, or old gems that don't have a particularly exciting first screen (DEtM, anyone?) Besides the fact that it could potentially ruin a level, as stated multiple times before (which should put up a red flag that it's a problem!), it's kinda a pain to do.
However, I'm kinda on the fence on this matter. True, it could ruin a lot of levels, but, then again, we may be exaggerating it a bit. But, LPChip, can it, instead, show the preview screen? That'd be better. It wouldn't ruin some levels and how much harder would it be?
Yeah, that's another thing. Whenever something's done that you're in charge of, you never take any suggestions, and, if it's nearly unanimous that something should be changed, you still stick to it and say it'll be as is. Why are you so adamant about these things?