Pretty sure all the bolded is also in ACR/Bridge. Maybe you haven't delved deeply enough.
Sure ... except for one glaring exclusion on your part ... Bridge can only see and reference the images that are actively accessible. In the Lightroom Library, once images have been imported, I can edit/add metadata, keywording, labels and ratings even though the images may be offline. THAT is where the database comes into play and a shortcoming of Bridge in this respect.
Once again, neither option is superior to the other. It is purely a matter of subjective personal preference.
I don't think Bridge is valueless. I think it is an awesome digital asset browser ... for my tastes, it doesn't even come close to matching the workflow efficiency if have refined over the years.
You also bolded Export presets ... When did Bridge get an FTP plugin where you can send files directly from the app to the client server without first exporting a derivative file and then invoking an FTP client app or browser? Likewise, when did bridge get a Blog/Wordpress plugin that allows you to send images directly to an online blog database ... again without first generating a jpeg derivative file that must be uploaded using yet another application.
It's these little nuances that keep me in the Lr fold, otherwise, I'd have left Adobe's solutions long ago.