These diversified activities all eventually draw management attention away from Ryaniars core business - which is carrying their customers to where they want to go.
As pointed out, all these activities are merely "branded" - they're operated by others and have nothing to do with FR, except that FR get some commission in exchange for their brand and the traffic. So unless the money coming in distracts them, I think we needn't overly worry that the Ryanair credit card will be the ruination of FR