I totally agree with your points.

Indeed CAT is not mentioned and the UNI-T's mark their meter I guess with a very optimistic view...

So, yeah, better not to fake mark it and be aware of that. And cautious too.

I 've done some stupid mistakes, like ac measurements on ohms range with my Fluke meter. Needless to say it did not felt anything. But you 'd expect that with such a price tag, right?

Yes, it is impressive what you get with same amount of money now. I don't believe what 300-350 USD buy in Oscilloscopes! Only in my dreams when I was young!

Ioannis