Your recollection may not be very good, then...
I have never flown Ryanair, but I fly extensively on many airlines. When I get on an airplane, the FIRST thing I check is the exits available for a water landing. I have found that is the MOST varying factor among airplane emergency procedures. On US airlines, the information is on the card on ALL airplanes.
I do not fly US airlines...therefore my recollection is still good...
The link in my previous posts shows clearly that there is not a plan for water landing.
The issue is why is not on all cards on all airlines? If so the bashing of the pax would be correct...