Installed the latter. So far so good, didnt do any major tests but multiple power cycles. Also, with the ClockSyncCycles set to 5 and syncToRefClock=true, my servos are now instantly OP. no waiting for them to be ready which caused some amplifier errors when i was too quick with the power button recently.
no idea if thats because of the new linuxcnc-ethercat version or because of those parameters.
one thing to note though, the dc-phased pin never went high for me.