I very clearly said:
You're confusing things here. Will staying onsite increase your chances of getting the coveted FP? Yes. That's the case with every popular ride out there. Right after SWGE opens up it will be way different than a day to day operation.
There's a huge difference in saying "staying onsite increases your chances of getting a FP" and saying "Disney is making it so anyone who wants to ride Galaxy Edge is going to need to stay on Disney Property, and possibly for 10 nights to get the 60+10 window! The FastPasses will still be free, but it's about to become a necessity to stay on Disney property to ride Galaxy Edge."
You're making the case that a qualification for riding a ride is contingent on staying onsite. It's not. The rides aren't closed off to non-FP guests as in Disney designed them that way from the beginning. The land may experience closures with exceptions but that is not a new concept.
Pandora was the same way temporarily in that a line formed to enter the land with people unable to enter until enough people had left but those with FP bypassed the line. But guess what? Over at Universal it was the same with Harry Potter (I don't actually know if having an Express Pass though bypassed the line or not) in which people were waiting in line to get into the land or they were given a return ticket to come back to the land. But TSL, Pandora, and HP right at opening is not indicative of a day to day operation and none of those were designed where non-FP (or in the case of Universal EP) guests can't ride at all.
I hear what you're saying, and maybe I phrased it wrong. I jumped to my conclusion without really sharing the logic of my argument. So, here's how I see the situation:
1) Popular new lands (such as Toy Story and Avatar/Pandora) in Walt Disney World have gotten so crowded that they only allow people in who have FastPasses.
2) Galaxy Edge is going to be insanely popular--more popular than any other land that has opened before.
3) For the first few days, weeks, or months, you are probably going to need a FastPass just to get into the land because it will be super crowded.
So, that was my first conclusion. To know that you can get into Star Wars Galaxy Edge when it opens, you'll need to secure a FastPass. How can you secure it?
A) You can stay on Disney property for 10 nights to get the absolute maximum booking window of 60+10. Plan on going to Hollywood Studios your last day, and you can probably get a FastPass.
B) You can stay off property for 10 nights if this property is partners with WDW. It sounds like WDW is considering ending these partnerships. So starting next year, people who want the 70 day booking will need to stay on Disney property.
C) You can book a dummy reservation for 10 nights, get the FastPasses you want, and then cancel it later. Only... this loophole is ending. You can no longer do this.
D) ??? As far as I know, there is no option D.
So, if you want a chance at the Star Wars Galaxy Edge FastPass to get into Star Wars Galaxy Edge, you will no longer be able to do B, C, or D. Your only option will be A, to stay on Disney property for a long stay. That's why Disney is allegedly ending their FastPass offsite perks and closing this loophole. They are guaranteeing more people will stay at their properties and for long stays (10 nights). They are making sure they get those stays and that money and not off-site properties.