I can see why people think that the editing in the ‘ta-da’ Finn scene is a bit rough. But I personally don’t think it’s that bad. Besides I just watched the latest workprint with a friend who hasn’t seen the movie since it came out in theaters and he didn’t notice anything off during the scene.
Also, I don’t if this has been discussed before, but is the ‘dark science, cloning, secrets only the Sith knew’ line staying in? I still think it is a bit of an odd line considering the Republic used a clone army a few decades prior. Changing the line to just ‘dark science, secrets only the Sith knew’ would already be much better in my opinion.