So I haven't heard back from Jet, other than an automated email assigning me a case number and saying they were checking on my complaint and would revert shortly.

I did point out to the telephone agent, when we spoke last week, that their website still displays the same benefits for P class as in the past, but, was told that the change was very recent and blah blah... I was then told in no uncertain terms that there was nothing he could do and was advised to write to member services, which I did. Just to clarify, I was told that this rule change was for domestic P flights only.

I will update here once I hear back from them.