Actually no Star Tours doesn't have single rider today. Its still not official yet. If you looked at my original post I indicated there was current testing for it, but its still not official.
Here is the official list from Disney:
https://disneyland.disney.go.com/attractions/#/single-rider-line
https://micechat.com/213627-disneyland-update-santa-priced-out-of-disneyland/
Micechat reported that it's there yesterday. Perhaps it's in the early stages of guest testing before they update the list and advertise it- but it is, as the say, operational.
Ok, maybe it in itself is not relevant, but it was a good example to use. There are only 8 attractions as of today in the whole of the DLR that has single rider. And there are only 3 attractions at all of WDW that have single rider. So maybe single rider will be officially introduced on ST, or maybe it won't. But I think its relevant because its not like they are adding single rider to every single attractions at DLR. If they were they would have done it years ago and most of the E-Tickets.
And again DHS and DL versions of SW:GE are suppose to be near identical, and with WDW not having single rider on almost all of their attractions. I'm of the opinion that its probably not a good bet that single rider will be added to the two attractions at SW:GE, at least not initially. Maybe it'll be introduced a couple months after the land opens, I don't know. I just don't think it'll be added initially until they see how operationally things will work with real crowds.
But again I've said that no one here really knows, so we'll have to wait and see.
It really wasn't a good example. The ride system and seating arrangement in Star Tours is
completely different than either of the two Galaxy's Edge attractions. You shouldn't be looking at attractions as a whole- but instead how each attraction is seated and whether they have single rider.
The closest rides (seating wise) to RotR are Indiana Jones and Radiator Springs Racers, both of which have single rider. For the Falcon, which has six independent seats, the closest (once again, for seating) would be Splash Mountain or the Matterhorn- which both have single rider.
Some rides will never have single rider- Pirates, Haunted Mansion, Big Thunder, the Fantasyland dark rides, Dumbo, Astro Orbiter, etc. because of how those rides are sat. Disney has been expanding the single rider program- Space Mountain got it last year, and Star Tours just got it. It's a win win for Disney- it boosts the capacity of the attraction since it guarantees every seat is full.
If we were worrying about how Disney World did things, we'd all have magic bands and would be reserving our fastpasses months in advance.
Anaheim has shown an affinity for Single Rider- if their track record of adding it to everything they can is any indication. Their demographic has a lot more groups of 2 or 1, or locals who are more willing to split up with their friends to get on the rides faster than the families at Disney World who have saved up for years to go there.
You're right, we can't know for sure- but I'd be willing to bet a few churros (those lightsaber dusted ones they sell) that both attractions have single rider.