I'm guessing the tiling issue might be easily fixed. It looks like there's quite a few hand crafted tiles; they just need to mix them up a bit more on each planet rather than repeating the same one.
It would solve the
aesthetics / visuals of a single planet
part of problem, but not the
I have already seen this exact feature on another planet
part.
BUT
Someone on forum was analyzing the interview with dr Ross, and it allegedly works not the way we suspect it does:
I remember reading about planetary features being procedurally generated for a specific planed using some seed algorithm
and then applied to this specific planet only (of course it does not apply to some of predefined ones like "crater with rays")
IF it was the case,
that would make problem two not an issue
but problem one would prevail because repeating the procedurally generated feature on a single planet could be bound to the time/performance limits of this approach.
I am not sure how it really works, everybody seem to has his own idea and FD isn't helpful at all in this subject.