Flying Scouser?! Last time I checked, easyJet was founded by a Greek and is based in Luton, nowhere near Merseyside...
easyJet must have been doing alright on EMA-Prague if Ryanair decided they wanted a piece of the action as well. If there was only enough of a market for one airline, and easyJet were already on it, would Ryanair risk a fight to try and push them off? If that was their intention, it obviously hasn't worked. And now bmibaby are starting it up again as well, so obviously there must be a market there.
Fortunately, Ryanair don't have everything their own way...