1) Investigating is one thing, but escalating to a block when none was requested doesn't seem appropriate.

2) It is proper to issue a complaint about a conflict of interest, when you believe there to be one, and not appropriate to be blocked for doing so.

3) The first edit listed is definitely not edit warring, as that was the first time that statement was added.

4) There is nothing vague about a WP:3RR warning, I believe this is even required by Wikipedia policy.

5) Again, we have a conflict of interest if parties on one side of a material dispute engage in blocking parties on the other side, for whatever reason they give.