An hour and a half is a deliberate choice. The New Labor Economy is built at briefing length, closer to a long essay than to a book, and that format tells you how Robert Tisort wants the material used: absorbed quickly, applied soon afterwards.
The subject sits across business and money, which is the right place for it. How work is bought and sold, who captures the value it creates, and what the shift means for anybody earning a living are questions that refuse to stay in a single department.
Short-form non-fiction of this kind is unfashionable to review and genuinely useful to listen to. It suits a commute, a walk, or the gap between two meetings.