Most recent ESCs are usually for some reason better than their label. I just looked at the FETs of the 15A 4in1 I recently bought and the FETs themselves can theoretically handle more amps according to the spec sheet. Seemingly they tried to sand the markings of the chips away (why?!), but didn’t succeed on all FETs.
Interestingly the label on the PCB itself shows a 20A marking.
Additionally, the maximum peak current is way higher than what you can pull through the ESC continuously.
Nevertheless, I would be careful with 6A ESCs. Current 1106 motors seem pretty power hungry on higher throttle values.