Misjudged the lean my ass? I don't even see an undercut? Can you imagine how hard that thing sat back on his saw? Landscaper dude was lucky it came off the stump so he could grab his saw and get the hell out of there.
A colossal fuckup on the "landscapers" part for sure, but it doesn't appear to be that big of a deal as it seems that there are some nearby trees with some decent height and size,. Set a couple high rigging points in 2 nearby trees, top tie that things to these rigging points, and set up a few lowering devices. Then start slice cutting the fucker until she's down. Half a day in and out, then love em' and run. In a just world the idiot "landscaper" would come back and clean up the mess for free!