I am not sure I agree. For the layman, wormholes come in a couple of popular forms, and the most common is the one with a weird energy tunnel thing between the entrance and the exit. The version where the entrance is the exit, such as in the game portal, seems to be much less popularly considered.

Fair enough. It may be more accurate to say one of the rider concepts is they allow FTL.

I guess, is just that to think that FTL matters and ties up with causality means to grok relativity, and causality issues may be a result of a layman physics views of wormholes, but it generally isn't really a part of it.

I think you are making a category error by saying that wormhole is too loaded a term for the layman in this instance. Non-technical people are generally better at dealing with ignoring the details of a metaphor anyway.