There are a few variations of real tracks that work well together, don't always have to 'use only that Brent Mason real track for the whole thing'.

Plus, guitarists use FX and change their sound all the time. One section can be one RT and another be a different one, be they verse, chorus or bridge (or solo) whatever.
Your average listener is not going to think about what guitar was used ..

FWIW I find mixing different styles/RTs to be quite enjoyable.
From what I understand, chord changes are given preference (weight) during generation. In other words, this section works well for this change, this one OK, etc
So this would make some generations weighted to use a given phrase at the opportune time more often than another. They do try to 'randomize' it, but that includes using a phrase at the beginning of one multiriff and again at the end of another.
Who knows?
Either one could be inspiring. A signature lick too early in a solo may make the rest mundane, while if you end a nice solo on that same really cool lick it may 'make' it .. so location can be a factor also.

I do not work here, but the benefits are still awesome
Make your sound your own!