Are you really saying Germany is a hesitant ally, despite them being the third-largest arms supplier to Ukraine? US or any other allied country would only risk losing support, there's barely any upside with Germany already committed to non-Russian gas imports.
I also don't see why Russian sabotage would be a false flag attack. I don't think they are seriously trying to pin it on anyone else.
Anyway I probably shouldn't have replied as I don't see any point in debating the obvious. I'll then just eat my hat later if I need to change my understanding of the modus operandi of some country in the European arena.