OK, I guess maybe I was not reading carefully enough to really get the point of this, my bad. However, as I have understood Tournament strategy isn't it even more important to not lose chips than it is to pick them up? If so why open the door to the raise fold line, when the push seems so clearly profitable. It also seems to open the door to a lot of bluffs,etc. If you raise, see a flop and it comes AQ5 and he shoves - what now?
Until near the FT it is fine to play basically chip ev, ie cash equivalent so it's fine to risk it early so long as it will pay chip wise. There are dynamics like your overall 'edge' but they still don't affect the value very much early on.
On this SB vs BB, sometimes you can tell that the BB is a predictable very nitty player and oddly this will allow you to get a better return by taking a raise/fold line with 12bbs (without antes) but the strength of your hand also matters and here 99 is pretty good so it would need a very unusual and accurate read of a nit to make it better folding than min-raise calling or shoving. Having hands as good as 99 in your raise line allows you to raise rubbish vs some regs to allow steals - it will all depend on the type of opponent. I am not an expert but I would suggest thinking through spots like these and how to play them against various types. The push is unexploitable but try to find the perfect line against a player. Against regs you play often you may also have to think about the effect on future hand ranges and how predictable you are.
If you raise, see a flop and it comes AQ5 and he shoves - what now?
If the player is nitty you can narrow their range down so it becomes a pot odds question and you won't have much equity. Your equity really does improve a lot if they aren't nitty and just defend often - it depends.