RR
'what did he expect?' I hear you say. I would suggest he was looking at how you handled the difficult situation you were put in. He certainly wouldn't have expected you to fly the perfect profile in an 'alien' machine, but what he would have required was the right attitude toward it and a steady improvement as the session progressed, commensurate with your previous experience.
I must admit, if it had been me, I would have spent all night learning the profile, standard calls and speeds if I'd wanted the job that much............. attitude counts for a lot.
Never forget that a company like easyjet can pick and choose based on whatever criteria they like. When there's a pilot shortage (for real) you might find things change, but until then you still have to jump through their hoops.
PP