This is a 2017 film with a
three-hundred million dollar budget:
Now they didn't use that budget to resurrect dead actors for a quick money grab, but, if they, did you can be sure they would have looked like ass and there would have been backlash.
CGI isn't bad in and of itself I'm pretty well convinced that using CGI to de-age or bring back the likeness of passed actors would be broadly accepted if it was done with permission of the actors or estates involved and done tastefully. However, we know that's not how studios would use it. Afterall, we have high budget bobblehead Leahs flying through vacuums, frankenstache airbrush jobs, and wax sculptures come to life for multi-million dollar cameos.
That OTOY clip is almost a best case scenario, and not just from a technical perspective. However, they would have little creative control over what studios use their services for and even if they're doing the work, some producer would find a way to screw it up.