Am I ok with this? KB107 in La block

The shop's answer is that unless you pay for "blueprint" quality they don't machine the top of the block parallel to the bottom? Seems that would happen automatically if the block is rigidly bolted to the table of a special block surfacing machine. Perhaps metal flakes were under one end. Perhaps they used a general milling machine and it hadn't been trued. No expert, I've just watched the process on TV and youtubes. I expect that the bottom of the block is always parallel to the crankshaft centerline. Might also verify that all the pistons are uniform, like temporarily install the high ones in the low bores and see if the problem follows the piston or the bore.