Prop Rep makes for a certain amount of EVEN SAFER seats, though?
In an MMP or straight-up 100% prop rep, any seats your party wins can be just freely assigned to party members, so even for tiny parties who get like 3-5% of the vote, they know for a fact that like 1-5 people WILL get in, and they can pick their craziest people to fill those seats to maximize the attention they get.