I don't think anyone has anything to worry about.
It's already been noted it's probably too late to even do a Romulan destruction story in the current litverse because there's been no build up. I think it was Christopher that noted that novas don't just happen without any warning. So I think the ship has sailed on that possibility regardless.
And I doubt we'll ever seen the Typhon Pact in any significant way again. Hell, I'd be surprised if we ever see a litverse novel at all again.
https://memory-alpha.fandom.com/wiki/Tox_Uthat
I assume Christopher would have written in this to justify it.

We could blame Future Guy.