All I would take from Bridge is the ability to catalogue all types of assets, and a couple of obscure details from the rename panel (string substitution and changing the extension case).
I would add the entire Filter panel from Bridge to allow slicing and dicing your collection in any way with a few simple clicks of the mouse, Reconfigurable and saveable workspaces, ability to fully view and develop assets directly and not included in a catalog, Bridge's copy all settings and choose what to paste as opposed to recopy every time, Bridge's intelligent understanding of previous settings being the previous changed settings and not just the last viewed file...
Generally, when you have to go through a kabuki dance to do something with an application, especially something routine/obvious, then there is a fix to be made.
Ignorance, and the historical perspective of Bridge/ACR vs Lr RAW image workflow options can be a two-way street. While they both have their issues as well as their distractions and shortcomings ... evaluation of these options and assessing one is superior over the other is purely subjective opinion and not empirical fact.
My point all along is not that Bridge/ACR is better than Lr, but that Lr is not as good as it could be. I was hoping to dump Bridge/ACR when I picked up Lr and I have found it not advantageous to do so. There is nothing inherently impossible about improving Lr making that possible.