GKV you're dead right. I think people above were assuming a gradual pull back of the stick with power off whilst maintaining level flight, in standard student manner.
If you rip the controls back, yup, it'll stall at the critical angle of attack, no ifs no buts.
I keep meaning to try it, but you should be able to get a recognisable stall out of a kite, if you jerk the string(s) hard enough.
... ahh "Peter Powell Stunt Kite, where are you now ??"