I think it's an issue with estimating probabilities. They probably saw a few failures a year of people using Signal or WhatsApp slopily on old Android phones t

I think it's an issue with estimating probabilities. They probably saw a few failures a year of people using Signal or WhatsApp slopily on old Android phones that were easy to sideload onto with a warrant, had microphones with no hard switch, etc, etc. They probably saw no failures of Sky ECC (as it sounds like a vendor hardened the phone for them and any convenience over security features are non-existent) right up until the claim that the protocol is broken and everyone is affected.