not sure if its changed in the past 10 months (screenshot in the post)
I have been getting vouchers by text "automatically" for over a year. This part isn't new. When viewing the reservation with delayed flight in the app, it now includes a link to the same URL as the text sends me.
That is the only new thing I can see. They've just put the URL in the app now.
https://www.flyertalk.com/forum/35357675-post7.html