I think a lot of this comes down to how you see Trek. A lot of people seem to see it as more like the Twilight Zone. Even if can no longer be used as a quasi-anthology like the TOS setting, it can basically be used to examine virtually any sort of sci-fi setting. Me, I see it as more like D&D at this point, where a lot of the point of even telling a story within the established Trekverse is the lore. If you're not using that, just come up with an original content show.
I think you have to strike some sort of balance.
I really liked about TNG that in their first two seasons they alsmost didn't revisit
any of the old stuff, and pretty much exclusively focused on exploring "new" stuff. That way, the show built their
own "lore". But I was also really excited everytime a familiar TOS alien or character showed up later during the series.
I think TNG did very well in first building it's own lore up, finding it's own identity as a show, and be able to do some wild experiments - some successfull (the Borg), some not so much (early Ferengi). And
THEN starting to do the cross-over stuff, to connecting it's own (now functional) lore with the traditional lore, and then going even further and connect to all the spin-off shows.
I think a modern day television show must be a bit more heavy on the lore right from the beginning. But so far, DIS is almost EXCLUSIVELY dependand on
previous established lore - which has the problem that this is a show that still needs to find it's own voice. If it tries out new stuff, and fails or succeeds, it tells it's own stuff. So far, by using 100% pre-established material, and then fucking it up, it actually
deludes the lore, and reduces the value of the Star Trek IP. At this point, I never want to see the klingons or the mirror universe again. And that were the two major story arcs of the first season, and they managed to completely exhaust any interest in two of the most well known concepts of classic Trek.
I think it needs to strike a balance. Something that feels like 50% - 50%. It wouldn't hurt if the main story arc of the next season was something completely new, unique and different, involving new major species and new plots, and the major side arc was something familiar, like a detour to the well-known alpha quadrant races.
I think none of the complaints would be that vocal if they show was actually
good. But this is a new show. The writers are struggling to find a new take on Trek. And I think it would be much easier to innovate while using
new stuff, instead of trying to find new
takes on
old stuff - only to find out the new version is now inferiour to what came before.