Hmhm, I don't think this ending was too jarring. The conflict was pretty easily resolvable to be honest. The only loose end is Aoi who just had a pretty strong change of mind to just concede to Saki. On paper this motivation and push was sensible and tied it neatly together, but yeah... it did kind of lack the OOMPH you expect of a finale. Though it feels like the author this time was writing in a way where the story could end at any given time.
I do like that in the end all it really took was Mio literally cheering on his Yuri Onee-chan to make Shizuku move forward. Title is not clickbait, am satisfied.