I basically agree with the sentiment, but I don't think it should have been expressed. A pianist shouldn't attempt to lecture composers. Rather if a pianist feels a composer wrote music which is pointless to expend effort to learn, the pianist should just avoid it altogether. That will be message enough, to the composer.
In the end one should be honest also with oneself. I can think of many pieces, that at first I hated, which later I came to love most of all. I can see that with students as well. We should always follow what fascinates us, even if it seems repellant.
Walter Ramsey