This sets up an incredibly interesting ALCS. One team (Astors) with a theoretically un(s)toppable staff of starters and a decent bullpen versus another team (Yankees) with an incredible bullpen and a "decent" collection of starters (not really). Two opposing philosophies.
Yankees: "I can win it in the later innings if our guys can keep it close through the first 4"
Astors: "I can deal with the later innings when my guys get me to the fifth (or more) with a lead, even against your offense."
Bring it on.
(What kind of sucks is that the Red Sox 2019 rotation on paper: Sale, Price, Porcello, Rodriguez - going in, was a model similar to the what the Astros have ended up with - on the field.)