To me it reads more like someone with a positive disposition (or someone who has founded a start up and doesn't want to burn bridges) laying out the problems without saying they are problems. I mean come on - the upsides: we "merged cultures", "our app lives on", "careers have bloomed" versus downsides "we quit", and "we don't think we actually delivered what we wanted to". But it's ok because after everyone who cared about the product quit, maybe someone else will might make it happen ¯\_(ツ)_/¯

You could change none of the facts of this blog and write it as an aggressive rant about how Google murdered their startup, forced them to re-write the entire thing, stopped them shipping by being a bureaucratic nightmare, and the big take away is you can succeed at google if you "play the right game" if you know what I mean. It's ... not positive.