Is pointing out that an instructor is wrong a sign of disrespect?

I'm not talking about interrupting class, but rather pointing out that someone with senior experience is or may be wrong about something. The prime example for me is Dan Inosanto. I think, given his broad, high-level skill and overall influence, he may be the greatest living martial artist, but I can find no evidence of his claim that FMA influenced Western boxing. I don't FEEL any disrespect towards him, but have been called out as being disrespectful by some on the 'net.

Anonymous2016-07-21T14:23:07Z

If your doing something wrong your teacher should correct you and for them you telling them they may be doing something wrong is improving them as well. And if your paying for lessons, you should be aloud to ask questions and question things. Make sure you get your moneys worth.

But there is a line you can't cross between being intrigued and puzzled and then humiliating someone

pugpaws22016-07-03T14:40:45Z

Several thoughts... First, Inosanto has earned his respect. If you were someone as well known as Inosanto and spoke out, then it would be considered wrong. Being that you are not well known, it looks even worse to others. I don't know what or where you made these comments, or how you stated them. It could be what you sai8d or how you said it. OR it could be where you said it. I have never seen anything that would make me believe that FMA had any influence on Western boxing either. I've been involved in fighting arts a long time and this is the first time I have heard of any claim that FMA had anything to do with boxing. Did Inosanto really come out and say that FMA influenced Western boxing? If so did he give any evidence?

Edit: It appears that FMA might actually have had some influence on Western boxing. A Bing search on the terms Filipino martial arts influenced boxing brought up a number of hits. One is... http://ito.inayan-eskrima.biz/Filipino%20Boxing%20Martial%20Art