[zucker42]

There's significantly more competition among VPNs than there are among ISPs in any given area, so it should be no surprise that some VPNs are more trusted than ISPs. Most people have only a few choices for their ISP, and maybe only one that offers the features they require (for example, only one ISP in my area offers high enough upload speeds to reasonable backup my computers). In many cases people don't have a choice of ISP that will keep their data private.

Therefore, you are trading trusting your ISP for trusting your VPN, but at least you are getting someone who says they care about your privacy (rather than someone who has a track record of not caring) and someone who would face significant business repercussions if they became untrusted, rather than someone that would face almost no business repercussions.