This thread is certainly well researched and done with good intent and will thus end well. /s
Delays happen, that's not something exclusive to japanese companies. Release dates are sometimes announced way too early (which doesn't make them a lie, they may well be shooting for these dates, but things happen), that's once again not exclusive to japanese games. Companies may have a hard time breaking news off a delay and will possibly try to deliver it with a piece of good news if possible, again not exclusive to Japan.
The one thing you can wonder is why their communication with their western branches is so poor at times, John Hardin (Atlus USA) should for example not have been saying the things he has, but he apparently legitimately thought it was 2015 as well.