I don't think either of you are even understanding what I'm telling you to be honest.
I'm not saying give everyone a projectile and turn it into DBZ, I'm saying give everyone an option so they can participate in the zoning metagame with an equal chance of winning it. A fireball is one of many options you can give to somebody. Lunging attacks that cover great distance, are evasive, and are relatively safe are another option. Genfu already has this and its why he dominates in basically every DOA.
So you have two options from the developer standpoint. You can either power up other characters so they can deal with it (while adding to the zoning metagame and overall gameplay), or you can strip the game down and nerf everthing into oblivion further (as was done with DOA 4 to great extent).
And Allan? Every fighting style has zoning. It is as much keeping distance as it is closing distance. It's CONTROL. The guy who first closes the distance correctly is the guy who usually ends up winning the fight.
This principle is true in real life as much as it is in fighting games.
If you don't want a developed zoning game, then what do you want? You might as well start out right next to each other every single match, because distance and positioning would be pointless without it.
So don't knock the idea of projectiles when it's just one way to zone. You're already dealing with it in any serious match anyway, so quit removing options that give you more control over the sluggish movement in this game.
Because truthfully, it sounds like DOA 4 could be the only 3D fighter you could actually stand. It already plays exactly like that. You don't even need a DOA 5.
If you think this kind of shit isn't important to a 3D fighter's gameplay, its showing you never had to push yourself against the legions of minuteman genfu's that plagued the offline tournament scene for a year and a half. Trust me, you want options to deal with that shit. If you think the game is fine without it, you're dead wrong. Plain and simple.
You did however ask one valid question, so i'll answer it.
You wouldn't even be able to use them, if a true sidestep is brought into the game, what purpose would a projectile have in DOA then?
Who says a projectile can only be fired in one direction? Algol certainly didn't give a shit about that. Of course he was over the top and could move WHILE he was firing, delay his shots, and fire in multiple directions at the same time.
And say you knock someone into a corner. Where they steppin to now?
Seriously guys, whats with this "I dont wanna deal with this stuff, it challenges me" bullshit. Fighting games are meant to be challenging and this is a hell of a lot better then cheetahs and cars. Man up already, there's a reason 2D fighters are more popular and it isnt chun li's thighs of steel.