There is a difference in the literal doing and fulfillment of the law and a New Covenant application of the law. The civil and ceremonial law have been abrogated in their literal doing sense. We no longer should be literally stoning people for touching mount Sinai (Ex. 19:13), or literally stoning a rebellious son (Deut. 21:18-21), etc. We can and should make applications from these, but should not attempt to literally fulfill them.

In addition, Lev 17:11 speaks of the reason why of a specific law, not the law itself. The law itself is in 10-12:

10 Any Israelite or any alien living among them who eats any blood-I will set my face against that person who eats blood and will cut him off from his people. 11 For the life of a creature is in the blood, and I have given it to you to make atonement for yourselves on the altar; it is the blood that makes atonement for one's life. 12 Therefore I say to the Israelites, "None of you may eat blood, nor may an alien living among you eat blood."
I do not believe God is literally cutting people off today for eating at the Longhorn Steak House - well maybe, Outback is better. However, as you demonstrated we can make application from the law (the writers of the NT do as well). Thus, it may be proper to speak of the "now, but not then" aspect of the civil and ceremonial law. They are abrogated in a literal doing sense, but we may still make application from them.

Maybe this is what you are saying .... image

In Christ,
5 Solas