I agree in some points Willie said . Clearly, it's not his fault that Janjan was dancing as the macho dancer . Blame it to the casting director since he/she is the one who recruit contestants to be in the show .
I don't think P&G , Mang Inasal , and sponsors who pulled out on the sponsorship deal , has to do with Willie . It's something to do with the incident that happens to be against their company's values and ethics . They know their company will get affected if they continue supporting the show - the show who made a kid look like a scene of Vilma Santos in "Burlesk Queen" when she started the prostitution business .
Willie's career turned into downward spiral when he supported Villar . It seems PNoy was threatened by that move plus Baby James endorsed Villar instead of his uncle - luckily he won by landslide . So now PNoy is firing all his bullets to Willie .
I don't think Willie has to personally apologize for what happened during the Janjan incident . But as the show host (and a producer?) , apologizing might shut the haters down . But bad publicity is still a publicity . So he's not doing it . If I were Willie , I don't fire back to those wash-up celebs , they are not really sincerely supporting Janjan, they just want publicity .