Just wanted to throw my two cents into the discussion.

First a huge caveat: this is entirely based on my travel patterns and habits. I completely understand if they are not yours.

I see this as a big improvement. My EUA clear so rarely that I'd love having the RU for flights where I really want to be in F, but not have to spend the miles/$ to jump the line.

The SWU issues is also an improvement for me. I tend to have one vacation to Europe and Asia each year that I buy a B fare on for the extra EQM and lack of BF co-pay. So the new restrictions don't really impact me. I'll be saving a ton of miles now.

EUA ordering, again, doesn't really bother me as I've had exactly one clear this year. When flying CO I don't expect to fly F unless I've purchased an instant upgrade fare.

Lastly, while my EUA never clear, I've always been in an exit row seat so E+ is a wash for me on CO metal.

As always YMMV