It actually is hard to understand the way that DAS is described - as basically “the standby lane, waiting somewhere else”. In that case, you are making statements such as “The standby line is overwhelming wait times in the standby line!” or “Genie+ is clogged up because more people are waiting in the standby line!” That doesn’t make a lot of sense, obviously.
I think you are blurring different points and then creating new confusions.
I've described how DAS load impacts an attraction's wait times. That happens regardless of what DAS users are doing while 'waiting'.
This common thing you keep bringing up of "just moving someone from standby" is simply wrong - the queues are not equal impact.
The second topic of what impact a person not standing in standby has on the rest of the park, because they are free to move around and are not trapped in a queue is the same as every other person who has a return time instead of standing in a standby line. By being free to do 'something else' they are demand load on the park and attractions (bodies taking up space, bodies able to take ride capacity, etc). So you have a singular physical person able to create demand load greater than another singular person who only uses standby.
Or to think of it another way... a person standing in standby is only doing one thing in the park at that time. They can't consume capacity anywhere else, nor create additional wait for anyone else. A person with a return time can consume resources from places besides the line they are waiting to return to. The expected DAS load on a LL line also impacts how many G+ slots they can expect to sell on a day because some of the capacity of their line is always going to DAS.
Again, in theory, DAS is essentially like letting more standby users through.
No - it's not. DAS usage is not like a standby user. A DAS user is more like 10 or more standby users because so much more of the attraction's capacity is given to the high priority queue.
DAS is not “unlimited LL’s”, although many people in this thread are confused on that point and refer to it as such. Letting more standby users through should not impact the LL. Hence my confusion.
No - it's not. Letting more standby users through vs LL would lower the amount of LL usages you get per hour - effectively reducing it's capacity. So that means longer LL wait time for the same amount of LL uses.
It's been said to you multiple times - the attraction capacity is the shared resource. It doesn't change in these conversations about what line someone is in. The lines are not equal to each other because the lines are not given equal access to this finite shared ride capacity.
That said, on reflection, I can see how the “window” element of DAS, combined with imprecise return times, could result in issues. (Again, however, that takes further analysis than simply saying that “standby users in a different location” would obviously delay Genie users - because that isn’t an obvious conclusion.)
DAS users delay Genie users because DAS users clog up the line a G+ user must pass through. It shouldn't dynamically change the G+ slots sold... but impacts the time spend in line by the G+ user, thus impacting their free time to do other things.