MVP doesnt count toward where a player is placed the next year, or the year after.(teams are picked well before awards anyway)
In first place they are the MVP of the team they play in, not the club or even the division they play in.
Now if you were MVP of a team that won the grand final by 50 points, you have an argument where did the team finish ?
Secondly the next year there are players from the next year level comming up and new players to be considered and only look at those in your position, you may be a better player than the centre but if your short, you wont replace him/her.
What the coach considers the most MVP is his/her opinion and what they are looking for.
Was the coach that awarded you the position a sasi/state or national coach?.
Was he/she a level 0,1,2 or 3 How long has he/she been coaching. It could be they fail to understand the difference beteween a good player and a show pony maybe you just looked good, but in reality weren't playing good basketball.
Maybe you were beat out by people with with more talent. if you are unhappy and think you should be in a higher grade try another club.
So in short the award should be enjoyed for what it is a recognition from your coach on your performance. Its not a free ride for future grading. each year you have to get better and beat those in front of you, thats what competitive sport is about.
It about what the next coach wants, not what the last coach thinks.
Look forward talk to the club about why you weren't put where you think you should be and work on those aspects of the game.