Yes the rumours are true regarding the no objection letters - it's the one hold that the current GM has on everybody and he will use it when he sees fit.
CFI is still here but probably not for much longer - he will be leaving at the first suitable opportunity.
Many of the flight instructors have similar views but unfortunately for many of them they have too much invested just to pack up and leave.
Suffice to say that it is not a happy environment at Horizon at the moment and it is unlikely to change until or unless there is a management change.
As for the board of directors - they are out of touch with what is really happening as they only get given information by the GM. CFI spent some time trying to keep them informed but was then threatened with "serious consequences" if he sent any further information to the board!!!