You may not like it but you can't explain away the fact that there is only 1 configuration of bolt holes. On the valve and on the other 2 pipes. They may have not lined up perfectly after having been removed (the ends of the pipe) but that's what rubber slip joints are for. If the tech re-drilled anything, you got took by a bad tech. Or maybe he was a good salesman?
Even if I was not there the holes are the same. On all of them. It's an industry standard.