I think that most high-level Go players (including AlphaGo) play moves that serve multiple purposes simultaneously. The ideal move reinforces your own position

I think that most high-level Go players (including AlphaGo) play moves that serve multiple purposes simultaneously. The ideal move reinforces your own position while forcing your opponent to defend their own. White certainly played plenty of moves that required black to respond, but black also did the same. For example, the sequence beginning at 77 is black getting a foothold inside an area that white might've hoped to claim later. Then at move 115 black attempts an invasion into a very strong white area, ultimately failing to escape or live, leading to resignation. That all said, I wouldn't say that either player was particularly aggressive. I've watched plenty of human games where one player or the other very intentionally picks an all-out fight. If you're really good at reading ahead locally and you think your opponent is not, this make sense. This is especially true if your large-scale game play is not as good as your tactical play. This is also common in high handicap games. If white can't slowly eke out an advantage early on, the only remaining tactic might be to go for a huge fight and see what happens.