Sounds like you’ve had a battle Ian! I would never have tried cleaning those up on the jointer (I don’t have that kind of courage). I would have grabbed a hand plane. Those are tools I have recently fallen in love with. My meager collection of two has now grown to seven, but that’s another story. I would definitely have used a plane to get one flat edge on the beam.
I have a couple of questions…First, couldn’t you have cut the laminates on the TS? I realize the 5.5" thickness is too deep for a single pass, but making one cut then flipping the board and finishing the cut might have been easier in my mind. At least you would have had a larger table and fence surface. Of course, I don’t own a band saw so I’m thinking of how I would do it with what I have. Considering it even more, if 8’ was too difficult on the TS I probably would have cut the 8’ pieces into 5’ and 3’ sections then staggered the joints during the glue up.
I’m not knocking your method, just curious.
Second, is that a giant mirror in your shop?

Where are the band-aids?---Pro Libertate!