In Sweden you can get a prepaid phone number completely for free: Comviq literally gives away SIMs and to pre-pay you can still use cash. So from this point of view PM is not lying, not one bit.
I support providers that believe this as well, and act in accordance.
Your model more treats privacy as something to be earned or attained through technical knowledge. No thanks. Journalists and whistleblowers need others looking out for them when no one else will.
If Protonmail doesn't solve this by the time my account is up for renewal, I will not be renewing.