Do you even need to discuss PT,or the lack thereof, with your OS at all? You are 2 months out from surgery; your bend will continue to improve as your swelling goes down. The more you push your knee beyond what it's ready for, the more it will swell, thus lowering your ROM.
I have my pre-op with my OS next Friday. I don't know what he'll tell me he wants in regards to PT as they seem to have made a lot of changes in the 4 years since my TKR; however from my last surgery 2 years ago where he told me I could skip PT as I probably knew everything I needed to do (or words to that effect) I suspect he'll tell me something similar this time around. If not, I will be upfront with him and tell him what MY plans in regards to PT are going to be. I know him well enough after a zillion years as his patient to know he'll either smile or laugh and tell me that's fine. But if he were the kind to throw a conniption and insist on me having PT, I'd smile and then do what I believe is best for me in regards to PT. And I'd avoid ever discussing it with him again.