I admit I avoided the "time barrier" business since it could create confusion and lead the reader to anticipate a time-travel twist. And I made the crew more diverse than was seen in the "The Cage," while also lifting crew members from previous Pike novels and comics.
On other hand, I believe I stuck with the "laser" thing when I did my Captain April story years ago, since April was before Pike--and ENTERPRISE and its "phase pistols" weren't even a gleam in anybody's eye back then.
Yeah, I noticed you didn't have Pike ordering "time warp factors." I won't lie; I was a smidge disappointed.

But some terms probably are worth retconning away.
The more diverse crew is much appreciated! Not until the recent rewatch on Tor.com did I realize we only saw white people in Pike's crew (apart from Technician Yamata - did you get to give him his name, Greg?). Mohindas is from the Marvel
Early Voyages comic, right? (he asked, too lazy to check Memory Beta...)
I also liked the anticipatory allusion to "Space Seed" as Spock reflects on installing a knockout gas defense system next time the ship is up for refit!
Oh, I also wondered: a Klingon character says (or thinks) the
Enterprise is a
Starship-class vessel. Is this original with you? I am glad you kept Pike's "United Space Ship" language, but wondered if Starship-class was established somewhere in the tie-in literature; and, if so, when the Enterprise became a Constitution-class ship. (When refit before Kirk's tenure? Of course, Diane Carey's
Final Frontier has it as a Constitution-class ship from the start...)
And - similar to my question about when "Star Fleet" became "Starfleet" in Trek publishing style guide: When did
Starship Enterprise become the name of the ship? I always took it as "...voyages of the starship
Enterprise..." but I have seen both words italicized in books for some time now.