Good point but I don't think this is entirely right. Startups are a gamble because businesses are a gamble; most fail very quickly for a variety of reasons. I'd guess that product-market fit and poor management are the two biggest failings of any business, not just tech businesses.

As much as it might be desirable for people in startups to put more effort in and try harder to avoid failing (and there are some very high profile examples of startups that just sort of floundered around), that's a small but high-profile minority who are already well-known; maybe Color falls into that. However, that's not most startups. Most startups have people doing their best but the business either isn't well-run or doesn't serve their market. That's a different problem and one that isn't solved by telling people to work harder.