I can only speak for myself, but most of the ideas he and writers have given out in interviews and come up with don't excite me. I don't really care about seeing Alexander again.
Neither does Worf, apparently!
I also deeply dislike the idea that he put in place, both with the finale and the potential Legacy series, that nobody is happy in this universe unless they're in Starfleet.
Yeah, I don't like that idea. But as far as I'm concerned, there's no reason to think Deanna and Data are back in Starfleet. Personally, I prefer to think Data is living on Coppelius with Soji and the other androids, and that Deanna is living on a major cosmopolitan planet -- Deneva, maybe -- where Kestra is going to uni.
Seven nearly DIED in S2.
Had she stayed with the Rangers, she risked either dying alone and/or being swallowed up by the Borg.
I mean, Seven has nearly died (often at the hands of the Borg) many, many times aboard Starfleet vessels, too. That's not meaningfully different.
I'd prefer Akiva Goldsman or Kirsten Beyer running it over Matalas (Matalas seems too eager to recreate Berman-era Trek).
Or maybe co-showrunning with one of them.