Maryz, you are right.
If you have a child who is reasonably co-operative and already does some of this stuff, then a list like this is not outrageous, it's generally stuff that well-behaved children do, but without it all written down.
However, if you have a child who is in a complete state of rebelling, extremely rude, defiant, has run away and had the police out, self-harming, has eating issues (which is what you told us on the other thread), I just cannot see how presenting this list is going to work at all.
It's not that I don't feel for you, I really do, and I do second Valhalla's post that some children aren't of the 'count to three' and just do it variety. I also don't think it's all down to parenting anyway, I know at least two lovely kind caring families with great boundaries which have one child who is very difficult, defiant, problems at school and in both cases ran off with older men when they were about 13 (which is absolutely where you don't want to head).
I would take advice from the school/teachers/CAHMS on how to start and where to start with resetting boundaries. As others have said, not doing 20 min piano practice is not of the same order as hitting, punching, running away. You need to pick a max of 5 things to work on and then write them in a positive way, with a positive reward (and a clear sanction).
This list will result in an epic fail on Day 1, when your daughter gets up late, is rude, does no homework or piano practice, and eats something that isn't toast and fruit. You will then be left with a dilemma, do I remove every single thing she owns or back down. Either way, you won't have what you want, which is a nice to live with co-operative daughter.
Personally, I would get the sleep sorted first, as without that, she is going to be too knackered to make good choices and change anyway.