Rather, I think they meant "trust" as in "Apple is observably predictable and rational in how they work toward their own self-interest, rarely doing things for stupid reasons. And they have chosen to center their business on a long-term revenue strategy involving selling high-margin short-lifetime hardware — a strategy that only continues to work because of an extremely high level of brand-image they've built up; and which would be ruined instantly if they broke any of the fundamental brand promises they make. These two factors together mean that Apple have every reason to be incentivized to only say things if they're going to mean them and follow through on them."

There's also the much simpler kind of "trust" in the sense of "I trust them because they don't put me in situations where I need to trust them. They actively recuse themselves from opportunities to steal my data, designing architectures to not have places where that can happen." (Of course, the ideal version of this kind of trust would be a fully-open-source-hardware-and-software, work-in-the-open, signed-public-supply-chain-ledger kind of company. You don't get that from Apple, nor from any other bigcorp. Apple's software is proprietary... but at least it's in your hand where you can reverse-engineer it! Google's software is off in a cloud somewhere where nobody can audit changes to it.)