35mm enlarged to 11x14 is a 10X enlargment. That's pretty ridiculous. I have done a few Kodachromes that way in the darkroom, but I made a
4x5 interpositive first. The idea of making big prints from an original the size of a postage stamp is hopeless if you have expectations of decent
detail. I personally use 35mm for a completely different range of usage than big cameras, namely handheld shooting and small poetic prints.
Yeah, you can blow up anything as big as you wish - the Marlboro Man was a bad snapshot to begin with, yet has been enlarged twenty feet
across tens of thousands of times (and probably killed more people than any other photo in history, if you want to talk about historically
significant images). So it just depends on your expectations.