They are wrong then. The full scale 182 has single slotted flaps. Says so right in the manual. Sorry. Can explain all kinds of reasons for them to not be fowler flaps, but I don't have time for that discussion right now. In the real plane, they are single slotted.

There are 4 types, split, plain, slotted and fowler. The cessna series uses slotted. Just the way it is.