Wirelessly posted (BlackBerry8900/4.6.1.152 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)

I wonder if pushing E+ buyups harder led to the mental state within UA that they wanted to focus on revenue as opposed to benefits. Hence they dropped the blocking. Unless the blocking led to a neat row of empty middles on the seatchart which then discouraged buyups I can't see any cost