I reject your assumption that he is against this. So many people have spent their lives creating art in a vein attempt to be remembered beyond their own lifetime. You are disrespecting the dead by assuming, without evidence, that he must have been against this, simply because you find it distasteful.

Peter Cushing died in 1994. He died well before any of this technology was possible. He couldn't possibly foresee the advances of technology in the two decades beyond his death. Cushing couldn't make his opinion on this subject known during his life because this technology wasn't even close to existing. However, Reczek could.

Reczek died in 2021. Technology to re-create dead actors was around for many years of his life. This was a well known fact, and a matter of public debate. Discussions on the ethics of this have been going for years before his death. He had every reasonable opportunity to make an informed opinion on this subject, and make that view known.

I have found no evidence that Reczek objected to this sort of thing. I have seen no evidence that the family or the studio are violating any stated or implied objection, nor are they doing this in a disrespectful way.