Coming to this piece for the first time, it seems perfectly reasonable playing (the piano sound isn't very subtle, but you can only play the instrument the in front of you). The piece seems to have a certain child-like quality: a simple melody over an ostinato accompaniment which moves harmonically up and down by semitones (except at the very end).
Ah, the old groaner! I want to tiurn this one in and get a new one as soon as we move, the thing is, e have been about to move house for 2 years now!
You sum it perfectly and this is the way I feel this piece: no pretences nor big gestures, long enough to establish a mood but short enough not to become monotonous. Aimless is a word that was used, but aimless denotes something that is lost and goes from here to there, without direction. I would call it static, because it goes nowhere and is not meant to, the way Satie's Gymnopédies do. There is just a desire to please; nothing else.
I do wonder, however, what the composer thinks!