I'm late to this thread but I knew treebuzz where the place to be for this discussion.
Anyone think this is the first step in an evolution on change? This first step, not looking very well received.
But imagine it revised. Maybe something like "Second line shall be present in tree with worker ready to be used....blah blah."
Or "open air ascent belay line shall be used for open ascents...blah blah"
Are these things I think we need? No don't be silly, we need people to take advantage of the training and knowledge out there, and then apply it with their brain to their work, not be "it has to rigging points so that mean force is spread out" guy (if you get what I'm saying with that).
The knowledge is out there to be had. I definitely think two ropes and save people in some situations, and in tree work those "some situations" aren't even all the same, each one is different, but maybe over time it can be refined to be required in certain work scenarios.
Once again I don't want it, don't care for it, wish people who just always seek more education, but I think it would help the people coming up in the ranks of tree work who are often exposed to more then they should be with they're experience level, who doesn't have the experience to make specific preventative decision.