Yes, not enough people understand net neutrality. No, what he is saying is completely illogical and is in fact 180 degrees backwards. His argument isn't wrong due to any libertarian idea about government interference. To understand why his argument is wrong requires understanding a distinction between platforms vs users of said platform.
Net neutrality is about classifying ISPs as common carriers. Common carrier laws state that the providers of certain platforms (e.g. shipping companies, ISPs) must treat all users of that platform (e.g. customers who want to ship a product, websites serving content) equally. The law says nothing about the opposite, and a user of a platform is perfectly within their rights to give preferential treatment to a particular provider over another. If you buy something and have it shipped to you, that retailer will usually either have FedEx or UPS as options, but rarely both.
The Blackberry CEO is arguing two things. First, he is arguing that app platforms should be treated as common carriers. That is a fair argument. I could get behind mandating that app platforms should treat all apps equally (e.g. not give some apps access to certain APIs while restricting access to those APIs for other apps. Such a classification might be necessary if for example Apple started giving access to GPU acceleration only to big game studios that could afford to pay a fee, while small indie game studios that couldn't afford the fee would be forced to use a slower GPU mode). But where he is being completely batshit illogical is where he argues that once app platforms are common carriers, the users must give equal treatment to the platforms rather than the other way around. To use the previous example, it would be as if the government mandated that if you offered to ship something via UPS, you must also offer to ship it via FedEx. Such a mandate has never happened, and probably never will. And arguing that there should be such a mandate for app platforms shows either a complete misunderstanding of common carriers and net neutrality on the part of the Blackberry CEO, or a deliberate obfuscation and intentional confusion of net neutrality in an attempt to gain sympathy.