As far as I know, there is no way to disable the repeater function of any ZigBee repeater devices on a SmartThings network.
To avoid any issues when power is cut off from repeating bulbs, I only have Sengled bulbs, which don’t have a repeater function.
So the multiple open/close message problem is solved? I am still working on a way to avoid that in the device handler, but it’s really difficult to test since my door/window sensors don’t have that behavior.
Just note that from what @Tiago_Goncalves said above, if the power is cut off to Trådfri bulbs, then any Xiaomi / Aqara devices connecting through them will go offline.