Glad you got diagnosed, and glad it's a mild tie.
I'm going to be a bit controversial here.
There's actually a study which is cited in the LLL Book of Breastfeeding Answers, which found that bottles HELP a tt baby learn to suckle correctly. My son was unable to pull the nipple back at all, even after his first division - he just licked it, and was starving - until we used a bottle. Wham, a miracle - he began to suck the nipple back, too, because he worked out that was what he was meant to do. (This was contradicted and refused as a possibility by every professional I saw locally, until one bothered to check her own manual, so to speak, and went, "ahhhh... tt babies are different, it seems...") The bf clinic at the JR in Oxford - who Dr Jack Newman recommends - confirm that a bottle can be a useful training tool. They say that nipple confusion is a frequently repeated theory, but unproven. (In fact the SCBU lactation specialist there, when I called in desperation, told me that "protecting the equipment" is key, with oral abnormalities!) Bottle preference happens, but not as often as is claimed. My son at 4 months feeds both ways very happily. Bottles are his preference if screamingly hungry, because he has such an immobile tongue he can't get much from the breast at any sort of speed, but he still prefers boob if not at a pitch of desperation. It's nicer to have Mum.
I absolutely hear and believe that bottles can be a disaster for some mothers and babies, and I don't mean to deny their experience. But I also believe that not using bottles is a disaster for others, because the pain and frustration takes all the mother has until she gives up altogether, and the baby goes on formula. Bottles kept me going, and expressing kept my supply up. Bottles are why my son is not on formula.
Finally, I see your midwife says tt babies need to learn a new technique after cutting, and that he has learned a bad latch. Mervyn Griffiths says he has seen a lot that can instantly suckle perfectly, right after being cut - a miracle cure is actually pretty common, especially in women who've fed other babies so know what they are doing. My boy didn't, but he's my first, and I didn't latch him well as the methods I'd been shown weren't the best for us - and most importantly, he was still restricted. There's nothing wrong with his instincts now. Just his tongue. Your mw may be mistaken. I really hope so - and good luck!