[ezfe]

Which, I would argue, is why perpetual licenses are not all fun and games... They didn't revoke any of those licenses

[dinglestepup]

The concern is here is clearly not the revocation of licenses.

The cost of not just learning but becoming a professional user of a specific set of tools is very high. Then later as time goes by being forced to either abandon these tools or to accept a different pricing model is - to many people - unfair and unethical.