smurf
its really tough to get through CX. but to be grilled with an aircraft that is not even close to the limits you are flying. regardless if its a multi - engine as long as it is not turbine driven is suffice to be concluded as an interview went wrong. The scope should be in piston-driven aircraft.. that's very unusual of CX recruitment team.
However, u mentioned that u didnt have any handling in the past 12 months that is quite alarming I think most of us here CPL/IR holders regradless of the situation needs to at least fly 10 hours in a month to avoid the need for recurrency or worse our licenses getting burnt. I bet you at least have a class 1 medical which expires every six months, which would obligate you to fly at least.
Anyhow, I bet you have tons of plans in mind. Cheers mate!