That's just standard warning Zeus is putting up so no one would sue him for anything going wrong afterwards.
Well, then why don't they put this warning for other mining gears that use separate PSUs if the purpose is what you claim? I don't know what to believe since I have not tried any of that, but my guess is that the warning isn't a random one, also I just noticed that the tool you are using is not the standard bitmain fixture that folks like Zeusbtc and other sellers on Alibaba sell, you are using the Russian version asic.repair which is a whole different tool, so maybe different tools - different setups.
I first bought the ZEUS one. Isn't the original bitmain fixture neither. It was useless to me for my S17+ hashboards. you only had a few seconds per chip to test it. Then you had to push the reset button each time and wait another few minutes to reboot. Literally just a piece of crap. The Russian one bypasses all that crap, and doesn't let the hashboard hash, so it wouldn't burn your chips. It's also way more expensive, but worth every penny. I did the tests on both hands on. The russian setup is by far better.
