Not an expert but I think you're right. The Wikipedia page OP linked describes the phenomenon this way:

Fata Morgana mirages significantly distort the object or objects on which they are based, often such that the object is completely unrecognizable... The mirage comprises several inverted (upside down) and upright images stacked on top of one another. Fata Morgana mirages also show alternating compressed and stretched zones.

They include a pretty good example with a container ship: