I have no particular reason to trust that you aren't a honeypot but I'd like to point out that I also have no particular reason to trust that any other cell service provider isn't. In fact given the recent e911 location data sale scandal I generally assume that all of them are.

Even if it turned out that you were in fact a honeypot, protection against SIM swapping and encrypted voicemail presumably both provide security benefits regardless.

It's similar to the situation with VPN providers. The provider could literally be the NSA themselves and I'd _still_ most likely see security benefits from using it (unless the NSA happens to be my adversary of course).