It is not even just credit cards. There are other companies which also offer Uber credits. For instance, if you drop off your Tesla for service in the USA, they offer Uber credits instead of a loaner car since they don't have enough loaners for everyone. I can see Uber totally doing what this article claims because when I had those Uber credits from Tesla service, I was suddenly price insensitive. It was not like I was going to use Lyft when I had Uber credits that were going to expire at the end of the day. So I ordered myself Uber Black to/from the office with the credit.