I am not sure what you mean by owners who lost their weeks? HGVC is restoring points and refunding reservation fees. I don't know how they are going to deal with home weeks in a different year. Since I never use home week it is not an issue that I focus on.
I truly lost a week... Marriott Maui that was scheduled, well, today. No way to get a week in a 2-BR OF in 2020. But the issue, as I see it, is who was or does assume the risk, me or Marriott? If they are assuming the risk, then yes, they should make me whole. But if I'm assuming the risk, they have no duty to me. In the TS world I believe we all, as owners, assume the risk of our week(s) not being usable for reasons like this. Any consideration they give is a customer service decision, not an obligation or duty. In the case of Marriott, that meant a "deal" with depositing the week in Interval International to create an opportunity to obtain a week somewhere before Dec. 16 2021.
Comparing Hilton to Marriott, it's really more a function of the system. I'm not a DC points owner with Marriott, so it was a points-based system vs. a weeks system. I could cancel and get all my Hilton points back, and move them to 2021. Can't do that so easily with a weeks-based ownership. But, again, that's a risk I assumed in choosing not to enroll and obtain points value for my Marriott.