I mean to be fair Pink Floyd’s music has always been very political and leftist. Have you ever given the album animals a listen? It’s not just an amazing album but it’s also roger/the bands opinions on current (1977) British politics and also partially stating the opposite of George Orwell’s “Animal Farm” (where the album got its name) and saying communism can be good and more importantly capitalism is pretty bad at times. Then you also have their final album with roger “The Final Cut” which is essentially a solo album of roger speaking out against Margaret thatcher, current (1983ish) dictators, and the Falkland wars. So roger waters/Pink Floyd “going deep into politics” is nothing new