'X are called Y' normally means X is mostly like Y, but differs in some key fundamental ways. Anyone who doesn't know about X doesn't care of X/Y. But if you ca

'X are called Y' normally means X is mostly like Y, but differs in some key fundamental ways. Anyone who doesn't know about X doesn't care of X/Y. But if you call it X, anyone who knows about X, will have to regularly have WTF moments, because even though it is called X, it is not behaving like one. e.g. javascript classes/inheritance/OOPs in general.