Define most people. As far as I could tell Uber has a far bigger user base and market share. So I'm not sure how Lyft could suddenly be used the most.
During the whole #DeleteUber protest it took longer to get an Uber at my house in the bay area. Lyft was quicker for about two weeks. Then it shifted back. Now I can't get a Lyft in under 20 minutes whereas Uber is usually 5-8 minutes away.
My experience is anecdotal but I see no evidence to suggest yours was not as well. If there is something showing Lyft taking over a larger slice of the pie then please post it.