It was the middle of the night and they had to give Manchin whatever he wanted to get him on board.  Meanwhile, Wyden had always carried the exclusion amendment in his back pocket after months of failing to get it passed.  The only Congressional intent involved was to turn off the lights and go home.  

They'll have a second chance when they enact an exclusion for 2021 unemployment.  Maybe we'll even get a technical correction, explaining what they really meant with the $150K limit (not just for single, but for MFS).