You would be right to have concerns about future ventures by the creators of Lavabit or CryptoSeal, just like someone might have concern about a Google API service. At least Lavabit and CryptoSeal are giving legitimate and very real reasons why their services shut down. This is different then being told "it's a business decision" or just having it disappear with no reason given.

Or worse, not you tell you anything, and in a few years you find out someone's been monitoring all the VPN traffic, INCLUDING YOURS.