The gith fight is the only one I didnt "master" and needed to barrel. Unlinking in group and putting characters in stealth doesnt work with this one. You cannot get surprise on them.
There is now a warning cinematic before getting there (and no more talking yourself out of a fight). The difficulty itself has been lowered (less HP), but the misty step double tap hits to hard especially with them getting intiative almost all the time.