I understand how painful it is to have this handed down, and how it seems like a lot of rules/stipulations - and I don't like to get a load of rules slapped on me either.
But as others have said, he is a student and this is what his advisor is telling him to do .... he's NOT choosing to make this so hard for you and so painful that you will want to quit because he really wants to terminate you, nor is he abandoning you.
However, the total no-contact part does sound rather stringent to me.....no contact between sessions at all? I would find that hard to take too ..... because I'd like to have that open if I felt like I was struggling and that bit of phone contact or whatever would help me do the things I needed to do to keep myself safe.
I wonder if the supervisor is protecting the student T a bit though, giving him boundaries so he doesn't go further than is maybe safe for him to go, since he isn't as experienced yet? And maybe the supervisor is on the strict/stern side?
I wonder too if a more experienced T couldn't offer the deeper support you need, with more moderate boundaries?