prospects for a position as Flight Instructor after the conclusion of the courses
What they may say verbally versus what actually happens can be two different things.
Do not assume that you will be granted OPT at the end of the course. you are not offered a formal position as such - this is purely optional practical training which may or may not materialize and is a maximum of 1 year, during which time you will have to support yourself with no assurances of actually accumulating that many hours.