I remember this one.
Recently, I found an interview with Wayne on line. It didn't have a time, but I'm guessing 2010ish.
Of course, he was asked about leaving the show. Again, I'm relying on memory, but he said it was more about the contract terms and didn't cite creative issues, such as being the obvious #2 to Hawkeye. So it sounded like he had more issues with 20th Century than with those more directly involved with the show.
Given that background, I don't know whether anyone would take a shot at Wayne in that manner.
I saw that as well. Wayne said that it was Hawkeye, but that was only part of it. he said he had major issues with the way that she was going, and how even Margaret, Henry, and Radar got far more attention than he did. He wasn't just a third wheel, he was more like a 5th or 6th wheel and felt that he was being ignored.
The final appearance of Wayne was as the PA voice at Kimpo when Radar and Hawkeye were picking up B.J.