Merseyrail – No feet on the seats but it’s OK for penguins and chimps!

Any passenger on Liverpool’s Merseyrail trains can’t have failed to have noticed that the train company rightly takes a very dim view of people putting their feet on the seats, indeed there are stickers like this in every carriage:-

No feet on the seats r

But hang on a minute on Moorfields underground station there is this poster:-

Feet on the seats r

Does this not clearly indicate that if you are a chimp or a penguin that feet on the seats is actually OK?!