Question is in the title.
I noticed if if I enable these hidden entities (I like to track the LQI for instance) on a device, it appears to restart my entire zigbee network, and I lose the LQI scores for many devices until they report in again.
Actually, the network is still up and running but state machine on the integration side is cleaning up everything to enable these sensors. In my own integration, this is also happening, so it is not specific to these sensors or ZHA integration.