Garry, I wrote the article and by no means have any agenda against YC. Tandem owes much of its success to YC companies, and we don't intend to stop backing them now. The main point of the article (as some other commenters pointed out) is simply that not every company needs to be growing through the roof at demo day to be on track for success. Perhaps some don't think that warranted mentioning; I happen to think the reminder is healthy.