It is perfectly fine. However, by saying that 'being an entrepreneur is shitty' Suster makes his audience believe that this is just what it's like to start a business, and you better be prepared for it or leave it altogether. That's wrong, and potentially discouraging to someone who is considering starting a business.
If Suster had written a post about the stress of VC funded startups, I'd have no beef at all.
If Suster had written a post about the stress of VC funded startups, I'd have no beef at all.