Review of Sword Art Online: Alicization - War of Underworld Part 2

I enjoyed as always the philosophical implications behind this SAO arc. The first part of Alicization was more riveting though. The last half of War of Underworld seemed dragged on and the ending became convoluted. It also seemed a bit cheesy that they ended up in "star world". I thought it would be a secret meeting with kayaba akihiko. I'm concerned it's going the route of every great anime series that goes on for too long. The only way they can continue the battles is by introducing ever stronger antagonists, up to a point where the heroes' powers become rainbow-colored waves and stardust, the fateof DBZ and PoT. How is it that Kirito has been playing all these games for "years" and still hasn't gone to college? Or is it that he's old enough to but has delayed going due to all the VRMMO events?