Peter,
I do believe that these trees could have been pruned according to ANSI A-300 standards without compromising the serviceability of the lines, but apparently the homeowners have agreed to allow these trees to be topped, with plans for future removal. There may be no solution to the problem, but I'm not going to assume this. I'm working toward a fair solution.....one that all parties involved can easily agree to.
I have hopes of finding a quick and painless solution to the problem, but I may be a bit of an optimist.
Joel