While I understand the sentiment, and I don't suspect it was done lightly, the rationale here is superficial. "I no longer believed would work". Well, whether it would work or wouldn't at one point you believed, and now you've got a team of people working for you. Closing primarily on the basis of your beliefs (which, apparently, were faulty before - perhaps they're faulty now too? market might turn around? network connections might kick in in 6-12 months?) comes across as selfish.
I don't think you actually were or are - I've no doubt there was a lot more going on that you didn't summarize in this one blog post, and it came across a bit off-handed. I say this as someone who's had to close down something with a team of people - I don't think anyone ever takes this decision lightly.