Stupid question why LVL Change in a SE situation

[Piltdown Man]

I totally agree. The aircraft will do that when Bloggs selects a new altitude, presses LVL CHG but keeps the thrust constant. But if he increases thrust and it will climb. Reduce it and it descends; all at the selected speed. But by keeping to very simple modes (three modes - ALT, acquire [or whatever yours is called] and LVL CHG) you simplify the flying. As to whether or not this is a good thing is questionable, but it is very simple and keeps surprises to the minimum.

PM