Hopefully it's not cooked, but I think even at 10A you can still overheat it. The problem is the motor is effectively insulated inside the case and 10A = c.500W and even that's probably too much for a long time. It obv depends on things like the ambient temp but I'd never ride a tsdz2 without temp mods+sensor again having fried one motor.
As for reliability - yes it's a mixed bag with the tsdz2. I've had relatively few issues on both my bikes but I'm a city/trail rider. I don't do hardcore mtb/downhill - and I ride it like a bike in moderate assist (3 out of 7 for the fw I'm using).
If you don't have temp mods or a temp sensor, if you use a throttle, or expect to start in high gears or don't have brake sensors then I think you're likely to see failures much more often than if you do the opposite to all those things.
Even with temp mods and sensor I can still get the motor too hot on just city riding up relatively gentle, but long, hills and it throttles back - at UK ambient temps.
You could always try fitting a VESC + torque sensor to your bbs01 like casainho has done to his m500
OpenSourceEBike.github.io