The point is to have fair representation. If a 30% fanatical minority can get a 100% clean slate for its candidates by voting strategically, AV fails.
In a single winner election AV makes coordination among moderates somewhat easier, so it's an improvement, but still inferior to Ranked Choice/STV with multi-member districts.
In a single winner election AV makes coordination among moderates somewhat easier, so it's an improvement, but still inferior to Ranked Choice/STV with multi-member districts.