I had a similar constellation with many tasmota-devices, and the challenge how to monitor and configure them with OpenHAB.
Then I discovered TasmoAdmin and removed all tasmota-maintenance stuff out of OpenHAB.
Maybe this can help to reduce the needed Tasmota-Items in your installation, too.
Sure, you can do all of this stuff inside of OpenHAB, but you have to setup this by yourself.
Maybe somewhere in the future, this can be handled in a Tasmota-Binding, but right now that is far away.