I had forgotten about the "PG-13 and below only" rule. Seeing your post reminds me that Disney had announced the rule would be used for Disney+ and anything else could be put on Hulu (of which Disney now owns a majority).
The only other reason I had thought about that rule recently is with the purchase of Fox many people questioned what would happen with Deadpool and Disney said they would still be making those movies. But maybe under another name separate from Marvel, I forget that part of it? If they are willing to do that with Deadpool, maybe they are open to a similar idea with TV.
I am watching in order, and have only watched S1 & 2 of Daredevil and S1 of Jessica Jones. Also, now I have watched a few episodes of Luke Cage.
I came in with little or no opinion about Daredevil, but I like it. I could pick apart certain aspects, but overall I have enjoyed it.
I do have one thought about the end of S2. It's been long enough that I don't need to be worried about spoilers, but I guess I will be safe and say: