Lee Ha Neul cursed Inkigayo during M! Countdown performance?

As you guys know, DJ DOC member Lee Ha Neul recently made some fuss regarding Inkigayo's backstage politics, later wanting an apology from Inkigayo PD. After August 5th's episode of Mnet's M! Countdown, there's a new controversy stating that Lee Ha Neul cursed Inkigayo. At the end of DJ DOC's performance of I'm This Kind of Person, Lee Ha Neul can be heard shouting "(beep) gayo!" The viewers who saw the performance heard a beep sound before Lee Ha Neul shouted "gayo," so people have been questioning if he indeed cursed Inkigayo. After the performance ended, Lee Ha Neul's agency told Money Today Star News:

"The words that was replaced with a 'beep' was not a curse. Lee Ha Neul didn't curse at all during the performance... I think most of you are misunderstanding the situation after the recent rant [Lee Ha Neul had] with the program. The 'beep' indeed was a word referring to a program, but Lee Ha Neul decided to tell the M! Countdown producers to bleep out the 'xxgayo.' However, due to technical difficulties, the whole word could not be bleeped out, therefore you were able to hear 'gayo.'... He never cursed so I hope there is no misunderstandings."