I understand everything what you are saying SPM but I think your question is better directed to the PG development team.
I have been on the fence over this myself in fact, but I believe U will be on your skates in no time and personally I don't think it will lose any customer base - it will just be PG.
editing reflecting -
i don't think this leaves anyone behind, it is more about experience rather than reflex, it may exclude some people who might not be capable of learning....