There is difference between regression and something that triggers rebbot. Especially when it's not first time where modem/data realted issues triggered reboot.
And yes it's unstable if it randomly reboots.

It's not about bashing, it's about saing that UT is less mature and Jolla is more stable just to say that with no proper explanation, where I provided an example of those assumptions being false and that I still would like to hear the real example and explanation and not any overrating "my os is best" from BOTH (not only jolla but UT as well) sides.
Currently I see both are not mature enuf. but UT is FOSS at least