MB was lucky, and I'm glad he was. I hate it when guys get hurt in tree work even those working in companies that don't do any of the right things (thinking of companies I've seen) no risk assessment, no proper gear, no PPE or not wearing PPE etc... I don't think MB fits that category by a very long mark, he is an experienced climber and cutter, but as your previous posts point out Ekka we are all guilty of cutting corners, one handing the saw, only one point af attachment, getting under the load, hey its only for a moment.
The whole point of getting hold of best practices and making them your practices is to purge ourselves of those bad habits, because they will eventually result in us or someone else getting hurt or worse. Best practice do take an extra couple of minutes, and sure when you're tired and cramping in the tree you just want it done and you on the ground, but those extra two minutes that call to your groundie to check the tip of the bar is through, or the line isn't fouled, they can save you a world of pain...
If you make them your good habits
Like I said I'm glad MB is ok.
SF