You can’t compare OWL gameplay to standard everyday Overwatch gameplay. They are for the most part quite different unless you have two 6-stack teams of high calibre playing against each other, who also know each others strengths and weaknesses.
Also, FYI, there have been other suggestions outside of mass res, I guess you just haven’t either spotted them or taken the time to read through some of them. So please kindly not generalise everyone into a claim that they all want mass resurrect to return, thank you!