I know this probably happens a lot but dang.
My neighbor just hired the son of their friend to help him get his landscaping business going. It's a small job installing those heavy red blocks as a two course garden wall.
Here's the rub (IMHO). There is a small slope, maybe 10 inches from top to bottom of the run which is about 15 feet. The installers are laying the bottom course to follow the slope.

I'd think that they should have laid the blocks in a stepwise(ish) fashion so that the finished wall is level.
Sure that requires digging down to get the course level but isn't that the way to do it, or is this wall too small/low to bother?