Lots of misunderstanding in these comments. Google Fi service is not going anywhere, Google is not cancelling any services. The Pixel Pass is basically just a bundle of optional services that can be added to your Fi account for a very slight discount. You do not get a free phone, you get interest free financing on your phone. Because they are cancelling the Pixel Pass Google has given me $100 credit towards my next phone, which is a better deal than the Pixel Pass itself.
Like many people I'm not happy with a lot of things Google has been doing lately, but the Pixel Pass being cancelled is not important.
To take some sting out of the move, Google is offering a "$100 loyalty reward credit" for active Pixel Pass subscribers. You can use it for $100 off a new Pixel phone from the Google Store or Google Fi, and it expires in two years.