To recap recent events... the motor was running decent but had the roughness that kind of showed in the video. I took it for a drive up and down the street and it ran the same in first gear and not under load. The first time I accelerated hard the motor misfired way worse, like it does now, and now misfires badly with or without load.
Since then I've rechecked timing marks, done a leak down, compression test (since I was already there), had the injectors cleaned/calibrated and made sure the battery cables were clean and connected well.
Heavy misfiring after a load could be fuel but I usually go to ignition first. There are six new coils and plugs, ignitor has been replaced and a friend probed the signals from the ECU on his hand scope and said it looked good. I'll look into the crank angle sensor procedure.