ToSU: I want to die. If you don't get it ToSU meant Towers of Slight Unhappiness and it was in the game for some time. There was also a difficulty with its addition which was "Effortless" making ToSU the easiest tower in jtoh.
Maybe a Tower is very easy, but the easiest tower in history is Tower of One Equals Zero, this tower has a rating of 1.04. It got removed because it was too easy, and un-enjoyable.
MaT shouldnt be Bottom Easy. MaT has 1 studs and there is a tightrope at the end and if you fail the tightrope you fall and restart. Tbh it should be Medium.