I missed Crookshanks too - was there even a mention of him? While I agree with you about Tonks, somewhat, I'm thinking her mother was still alive and she brought Teddy up, with input from godfather!Harry. At least, I don't remember her being dead, which brought in Neville parallels.

the Hogwarts resistance is fantastic. I wish we'd seen something of their day to day life. Word. I was resigned to not getting much of Hogwarts until the final fight, but those references were so tantalising. I loved the DA in OotP and the combo of Neville, Luna and Ginny.