Disclaimer: yep, I still like Discovery.
At first I felt the outrage of everybody suddently accepting Tyler as if nothing had ever happened, but I calmed down after Tilly's scenes. Her explanations were good enough for me. The original Tyler died and his conscience was put inside Voq's modified body, while, according to the new doctor, Voq's conscience is gone (yeah, seems legit). If someone dies, but all his memories find their way to a new body, is he really dead? For all purposes, they considered him 100% Tyler and a different person from the one that killed Hugh. It's not that different from welcoming Picard with open arms after he was transformed into a Borg. That's part of their moral code. Starfleet officers are usually the epitome of Lawful Good characters, but those are prone to become
Lawful Stupid (in Star Trek, the most notorious example is Janeway in Voyager's pilot episode). That's what I truly expect from Starfleet. Yes, it's probably going to backfire horribly. And it will be glorious to watch.
What keeps failing, in my opinion, is the non-existing chemistry between Michael and Tyler. Which is a shame because they have had great non-romantic interactions with other characters. They just don't click. On the other hand, Stamets' reaction to Tyler was perfect: not completely forgiving, but not annoying and revengeful.
The map shown in the previous episode was misleading. The Klingons only occupy 20% of Federation space, so the war is far from over. I don't think anymore they will travel back in time, and that's for the better.
The "plan" with Georgiou is so outlandish it might work. Let's remember that the only character who saw Georgiou dead was Michael. I didn't believe they would dare to do it... and then they did dare! Plus, more Michelle Yeoh (I welcome the fanservice).
I also noticed Jason Isaacs is still listed in the opening credits. It could mean nothing... or something.