Yep, for the sake of clarity I didn't bring up the fact that Transavia has a third set of rules.

Got a reply from the Ultimate TA that stated that I'd have my usual AF allowance (1 trolley + 1 bag + 1 check-in luggage) due to being Plat+.
When pushed for a source that could be used in case of a last-minute discussion with a ground agent, he magnificently replied: "There is no source but my expertise and this email".

Looks like I won't know for sure until I'm in the jetway...