Author seems to ignore that FOSS projects tend to be much smaller teams without budget to create the user experience that private VC funded projects can.
Ths whole accountability argument seems to be pretty disingenuous, allowing anyone who wants to evaluate the source code is about as accountable as it gets.
The not-so-subtle "you will be lazy about what your doing if someone is not paying you not to be" vibe throughout this article is off putting to say the least.
I also find prioritizing user experience over the sharing of source code to be misguided. Allowing folks to gate keep knowledge and hide what they are doing is a big price just for a better user experience.
The real issue with FOSS is the same as with P2P networks. Most people are leechers whose only contribution is lip service.