Edgerouter POE with Unifi APs

Reading several threads with people trying to accomplish exactly what I am.

Would like to eliminate clutter from injectors so I'm considering upgrading my ER-Lite to the POE version when I upgrade my single Unifi AP to dual Unifi AP-AC-LRs in a new home I'm building.

I also will require a 24 port wired gigabit switch to connect various devices.

I'd like it all on the same subnet.

Others seem to come to the conclusion that software bridging is required to have switch0 and eth0 on the same subnet.

Since I will only have two POE devices connected to eth2&3, what would stop me from ignoring eth0 altogether and just uplinking my 24-port switch to eth4 so my wired devices are on the same subnet, and I avoid performance degradation due to bridging?

Thanks for any help.