if your position is not business critical, the business has no reason to reject your VSP application. business critical positions have already been identified.
why did everyone get the VSP? simple... to reduce the risk of discrimination claims.
the only way your VSP application is getting denied is if the elimination of your position will increase risk for the business or if too many people on your team applied. it will not get denied because your PL wants to keep you here (those words came from my PL). if the work can be redistributed to your team, it will be.
someone on my team applied for the VSP and the discussion of how their work is going to be redistributed has already been had. those of us who are staying will have to prepare for things to get a lot worse before they get better.