Why are ATM fascias so complicated and intricate?
I think the design of ATM machines makes it easier to attach card-skimming devices. They have lots of joints, recesses, protrusions, badges, unnecessary styling features and so on. Even genuine ones look like they've been assembled from various mismatched components over a period of years.
If the entire ATM facia was a single large moulded piece of smooth curved plastic, preferably flush with the wall of the building, it would be easier to spot at a glance recently attached card-skimming devices.