From wikipedia: “Pirate Party is a label adopted by political parties around the world. Pirate parties support civil rights, direct democracy (including e-democracy) or alternatively participation in government, reform of copyright and patent laws to make them more flexible and open to encourage innovation and creativity, use of free and open-source software, free sharing of knowledge (open content and open access), information privacy, transparency, freedom of information, free speech, anti-corruption, net neutrality and oppose mass surveillance, censorship and Big Tech.”
Massive first preference vote losses maybe, but the preference flows would still trickle down to two major parties, it always does.
That preference flow data can then be used to shape future legislation to keep voters on their side and even to pull swing voters from the other sides, or at least that’s how it is supposed to work when the media isn’t actively working against you.
“hey we only won because of votes from this minor single issue party, maybe we should consider our position on that issue”