Make menu block work for D9 again.

I've literally spent about 8 hours on this issue. Look - I get this is open-source software, and I get further this is all volunteered, but creating these fail death loops to *actively remove support for something that once existed because reasons* is going to give me an aneurysm.

Right now, this has created the equivalent scenario of a commercial airliner that bursts into flames if the coffee maker doesn't have a filter in it. This isn't good process.