I guess with the benefit of hindsight another way to approach this would have been to have written a short blog post on what the issues are with the open source

I guess with the benefit of hindsight another way to approach this would have been to have written a short blog post on what the issues are with the open source project in a constructive way, send out the same tweet but instead link to the blog post rather than the GitHub page. That way the Tweet would have got just the same amount of clicks and (initial) shares but the blog post it linked to would have put the thoughts in context and would have avoided the risk of this tweet (who's main criticism in isolation is that it is overly offhand) being mixed in with all the other actually unpleasant tweets. But, as always, the world could have been perfect in hindsght