This happened to me a few months ago. I blew it off and one day I couldn't use my wechat wallet.
So I followed the instructions, including taking a photo of my passport.
I clicked the "verify" button and immediately got the green light to use my wallet again. This is clearly a beuracratic "requirement" as there was no way, even at the speed of light, that my ID could have been verified in less than one second.
Just follow the instructions and go on with your life.