A
small portion of it, yes. But a much larger portion is due to:
- Ticket price increase
- Strict black out dates
- Delayed vacation planning due to anticipated large crowds
- Delayed vacation planning due to the major attraction not even being open yet
- Other factors including possible Star Wars fatigue, product offerings being subpar (blue milk < butter beer, Smugglers Run < Hagrids), unfamiliarity of the characters, etc
That, and we're only looking at Disneyland right now, the Disney World version isn't even open yet.
If they were to do London *again*, people would be confused and/or argue that it was a stupid decision to do the same area twice in two different parks.
I do think London is untapped, but it needs to happen at their current London location, in 2024 or beyond, as an expanded area to USF. (They could takeover San Francisco and rebrand the restaurants as London, redo F&F as Knight Bus, for example). If they do London again at Epic Universe, we're basically saying Diagon/London gets Gringotts and one half of the train and they're done, there would be little hope for an expansion in the next ten years. Give me Paris, but then expand London.