My guess is that very, very, very few people believe corporates these days anyway. if it's a very small company - I believe them more as they have more to lose. But the big companies can always cover up / apologise / compensate for a mistake.
If a company say they are on time - that is historic and no ref to what might happen on the day. So I just ignore ANY publicity or advertising and that goes in ANY field of commerce. Oh and I ignore things the govt tell me they have done as well.