I don't have a degree and I have that. Also I know a lot of people with a PhD who do not have anything remotely resembling freedom.
The author might be biased but it's good to hear it from that side once in awhile, rather than be deluged with "you can't do science without a PhD" and similar sentiments (I work parallel to academia and get plenty of shit from their ivory towerism, hence my comment).
In what way is the author "biased" exactly? She did this course, was in both a PHD and tech, and tells people why she thinks it's worth considering not getting a PHD, listing various (valid IMO) reasons.
Where does bias come in exactly?