Just to add a data point:
Applied for the 50K/50K business visa... wasn't approved right away so I called in. They processed and approved me over the phone and then confirmed that my sign-up bonus was 40K after $750 in spend.
The rep said this was because I had an old app on file (from January) that was originally declined (apparently this was the offer on my old app?), but I could call customer service to have the offer changed once I got the card.