XMR doesn't bring anything to the table over BBR
Actually, it brings the one and only thing that currency is for: Liquidity.
Last time I checked, the only thing I could purchase with XMR was the integrity of individuals on boards, forums and exchange trollboxes. Unless you are also counting extracting bitcoins from castle-eyed brainwashed daydreamers as liquidity too.
Yes it currently has "liquidity" advantages over BBR.