There's been a fan theory for a while that the reason for Discovery's really long nacelles was that the ship (and Glenn) were specially modified for the spore drive experiments.
This episode would seem to reinforce that.
Also interestingly the saucer seems to be the one from the original (substandard) CG teaser Discovery saucer, rather than the final show version.
I feel like the 'boring' rush from sequence to sequence is happening a lot in media right now. I remember feeling the same during a couple of episodes of the last season on Mando.
Almost like paying and rewarding writers properly, so you get their best work is important.
Best I can put it down too is that they're keen to make the characters seem strong and powerful, but they forget to set up proper flaws, tension and stakes/the ones that used to exist have been ruined by now over a decade of magic resurrection macguffins whenever somebody dies in popular media that fans like.
As sub par as TNG Season 1 was, and regardless of the toxic behind the scenes environment that led to it, we can't deny that them killing off a principle character was a bold move than really set the stakes that anybody could die and that it wouldn't always be in a blaze of glory.