That's the current meta though is the thing and it could change.

There's a plausible world where drone-aircraft are reliable enough at missile evasion that a decent strategy is to get in close and use the cannons because your entire airframe is much more attritable.

There's even a plausible reason to do this: opening a weapons bay to shoot a missile generally reduces stealth, and not hauling a bunch of extra rocket motors and mass around could make you lighter, faster and with better engines to do it.