Clearly, the one thing they avoid like plague is naming ships after Starfleet heroes...
I mean, yes, there's a USS Chekhov out there, but the odds of her being named after "our" Chekov are pretty slim, even without the slightly different spelling. There's a shuttle named Pike there, but there's probably a shuttle named Salmon, too, and in any case no shortage of Pikes of interest outside "The Cage".
Perhaps it just doesn't do to be a "Starfleet hero"? Perhaps taking credit is the ultimate act of debasing oneself? Perhaps naming ships after killers is considered disgusting, unless said killers themselves died sufficiently many centuries ago, on a backward planet the heroes can safely ridicule? Who knows.
Timo Saloniemi