Yeah, this teaser didn't really hook me, but there really isn't enough shown here to justify the intensely negative reactions/predictions.
The only thing that bothered me, and I'll probably never let this go, is that they threw out Rey's awesome TLJ costume and hairstyle and regressed her to the TFA equivalents, just so they could use the unused Leia footage from TFA?
It looks like in general, that this teaser doesn't acknowledge TLJ at all: Rey back to TFA costume and hairstyle, blue lightsaber repaired, Luke in prominent voice-over, no Rose, Kylo repairing mask, Palpatine is back (to replace Snoke who was supposed to replace Palpatine), Death Star.
Rey is a Skywalker, but as Anakin, she has no father. She is daughter of Leia, step-sister of Kylo. She is the one that could defeat Palpatine, as Anakin should have, but couldn't.
Only hiccup is how are they going to explain that Leia cheated on Han. I think she might be the daughter of Luke after all but of Keri's character who noped Luke and had Rey or something. That makes more sense to me.