Ha. I've never cut hay with a sickle mower. But I know what you mean.
Honestly, I thought there would be more to that term "land". What you described is really no different then what guys did around here with one way disk plows and tillers back in the day. We just didn't have a name for it. So what is the knock against 2 way plows? To me it those would make more sense, since you are not wasting time going from one side to the other. Just my opinion, if I had to make a living plowing I would look into those.