By compacting all of the styles it’s actually less intuitive. More clicks now to do the same thing.
IE changing from display block to flex. Two clicks now vs one click.
When you do this for several styles it’s tedious.
Also, maybe I missed all of it, but I never saw a problem with the current styles panel. I think it’s excellent. So maybe there was feedback asking to change or was it WF just deciding it should be changed.
Statements like this are pretty subjective, but what you can do is tell exactly what you feel is wrong with redesign and if your reasoning is solid and people will support you, wf team will most likely listen. They already reverted the controversial drop-down for display properties for example.