Is this bouncing similar to boxing? In kyokushin, some instructors teach bouncing as a part of getting in and out. I've also read that bouncing will make you subject to ashi barai and an easy wazari in kumite.
TKD has gotten a bad rap here in the United States due to the over saturation of dojos. Every time I've heard something being compared to TKD it has been in a negative connotation.