In a context of both her streaming and musical carrier it looked like Cover pulled her out of basement to flash her face for a couple of big promotions and then she crawled back.
And I agree those projects were big and great, but I think that, if she just streamed and released songs it would had a bigger impact. After all IP is good only as long as its alive and Gura's IP barely could've been called alive for the last two years. Which is why I maintain my opinion, that her carrier crashed and burned in Holo, for whatever reason (that reason most likely being brainworms).