Robert Morris[1] is VERY (!VERY!) technical and he commented on my YC application many many many years ago somewhat along the same lines. I am not trying to be negative, but sometimes VERY technical people "poopoo" ultimately successful businesses because they seem trivial or technically not interesting to the engineer inside them (see "Show HN: Dropbox" comments).

In contrasts perhaps they fall in love with deeply technical ideas that pleases the engineer inside them, but ultimately will fail to become a successful business.

[1] https://en.wikipedia.org/wiki/Robert_Tappan_Morris