The union ad's message is "When you board a Qantas flight..you expect a Qantas pilot". As far as I'm aware, the only QF prefixed flights that one would board without a Qantas pilot are the codeshares (op by BA etc) and franchises (such as the domestic B717 ops), and I'm not aware that these are meant to be the target of any protest? Jetstar flights on aircraft owned by the Qantas group don't use QF prefixes except for a few codeshares. I assume the in-flight announcements referring to "Qantas aircraft...Qantas pilot" convey what is really meant, but the lack of precision won't help to get the message across to a public who might not consider Jetstar flights to be Qantas flights.