This sounds like @Hedda which is deep inside the topic 
Which sounds to me like the opposite of what wifi offers 
For my ~100 esphome nodes it is as simple as editing the secrets.yaml and hit update-all 
Generally my devices have a list of SSIDS/Passphrases and therefor switching wifi credentials on the AP/Router is seemless.
The same would/could be true for zigbee devies which are bridged into a LAN (connected to HA) 
I would hate that so much. Isn’t a smart home about to make things easier and not harder? If I would need a manual interaction to “pair” my ~100 devices I would have stopped long ago as this “forced gamification” is just wasted time for me. 
Indeed, Zigbee uses less power then WIFI (which uses a lot mostly because of the quite heavy WPAx encryption). 
Which is the most expensive energy source for most of the people. I calculated this in the past an calculated a price of over $1000/kWh for coin cells. 
That’s was more than 1000 times more expensive compared to locally available regenerative energy. And as Zigbee devices are not 1000 times more efficient than wifi devices one actually pays more with this “efficient” devices running from (mostly dirty) coin cells
This is why I try to avoid battery powered devices were possible - not only more expensive to run but at the same time producing ugly waste. 
Essentially bad for the environment and my wallet 