I think everyone can personally choose what to ignore from Canon..... i dont think this movie would get removed from Canon by FOX.
I have yet to see the Movie... so i cant comment much about it, and its why i have ignored related Posts so as to not get too spoiled.. Sadly it seems the Writers just cant make a Good Story that does the Alien and Predator Franchises any Justice... But then its a case of can anyone make a Predator movie or Alien movie that is going to please EVERY fan?
I cant say if The Predator is a Prometheus kind of disappointment to some fans, or a Alien Covenant kind of disappointment to some fans... or even a AVP disappointment to some fans... SURELY it cant be a AVPR disappointment though ;)
"sloppy editing"
Prometheus had bad Editing... but most of this was Fault of RS/FOX i would say The Predator is not at such a Fault.... its Editing was a case of various Re-shoots and Scenes they had NO CHOICE but to cut out.
We have to WONDER what kinds of U-Turns in Plot was made to the Movie that Warranted a number of Changes, and it would be interesting to see how Close the Movie is compared to the Drafts just prior to when the Production/Shooting was given the Go Ahead.