Sometimes people don't want to mess with Bougainvillea themselves, and take bids etc. Sometimes it seems to me people take bids on that kinda stuff to find someone that doesn't know what they are getting into.
The stuff is pretty, when it is all aflame with blossoms (only reason to put up with it, unless ya ran out of barb wire too early). It takes to drought some, but not cold, can take over like a weedy vine, really spectacular down here, till you go near it.
Those are about the shortest needles i've ever seen on the stuff, they get an inch or so, with a fine hooked needle and some kinda low level poision on the thorn that some folks are quite sensitive too, most get rash etc. to remind you who ya'been messin'with!
i don't get hardly any jobs like that, might be pricing them too high! Few times people wanted them removed, then i might be able to lasso a bunch, draw tight with truck, cut some free, draw tighteretc., etc.; then drag to road when all cut free, and the tangled mess you usually fight against, helps hold it together.