Even if what you are saying is true, which at this point I doubt, it is still a useful feature if you want to gather several fleets or unfleeted ships at the same location...
Using shift+click for multiple fleets to a single destination works for combat because it is conducted at the end of each day and all of the group is present.
Aside from that, each fleet (or ship) of a shift+click group moves one at a time (even if they have the same speed etc) so they encounter "real time" events like mines at different times.