That’s a good list but I don’t agree with your primary point that GlassWire is only “a TOY one” or that it is not a “genuinely useful or competitive firewall UI”. I like the simplicity of the GlassWire Firewall interface. That is one reason is why I bought it.
I didn’t expect GlassWire to become a comprehensive interface like the Windows Defender Firewall with Advanced Security or Windows Firewall Control.
I also didn’t expect that we would get many features in the first release of 2.0. I expected most would follow in version 2.1 and later because the GlassWire team has generally tried to rein in our expectations.
Where I do agree with you is the need for many much-requested features. As you emphasize, the user interface lacks basic and commonly used features: sort, filter, select, edit, column organize, etc. The block and allow options are still too limited. And so on …