Do you feel the same way about airlines with a biz class who allow priority boarding, more than one bag, bigger seats (or 3 seats between 2 people), or 'free' catering or the use of the lounge?
No because it's not remotely the same. Business class passengers pay for a business class service, a different product entirely.
EZY don't have business class service. It's an economy class ticket and an economy class plane. Yes they offer FLEXI fare which entails some of the extra services that attract business travelers but it's still, like everyone else, an economy class ticket.
The thing I personally have an issue with is how the policy is instigated in a way where it almost discriminates or is at the expense of your typical everyday passenger or family.