I’m here to report that sometimes my Forest Priest will have the option to attack/cast spells/etc. as normal, when the intended behavior is for its turn to be skipped and the other creatures in my party to be buffed. (It’s worth noting that the speed buff also doesn’t happen on these occasions.)
I’m speculating this to be connected to Turbo Mode, or an encounter where there are Forest Priests on both teams, or both? Either way, it doesn’t happen 100% of the time, and it doesn’t seem to happen unless I hold “E” to skip through Turbo Mode.