Earlier quoted context omitted.
No. Attribution of motive is never helpful or appropriate as part of a supposedly-technical discussion. If it were, then maybe someone should also mention Fielding's own interest in enabling insertion of ads by proxies. But no, that's exactly the kind of thing the IETF chair's message was trying to address, for all parties involved. If there's a problem with lobbying and conflicts of interest, that needs to be taken…
Identifying conflicts of interest when evaluating systems is mentioned in the ACM Code of Ethics. It's possible to do this in a neutral/professional way. Section 2.5: http://www.acm.org/about/code-of-ethics
The only way that applies, even considering that IETF and ACM are two separate organizations, is to Fielding's own conflicts of interest.