I suspect you're right, but Coinbase does have a reasonably large London office from their job postings. If anyone there is affected it is important they know their rights.

I have worked for US companies going through a mass redundancy where they just avoided any UK based redundancies to avoid the headache.

I also value making clear to US-based readers that such protections are important and do make a difference to how companies behave. If readers don't like living in a world where they fear very immediately being cut from their job then they should know there is a different world out there and they should lobby their representatives for change.

> California’s Worker Adjustment and Retraining Notification (WARN Act). Under this Act, the right of employers to lay workers off for reasons bordering on business necessity is curtailed. Employers who plan to lay 50 or more employees off within a 30-day period must give them a 60-day notice before taking such actions.