Absolutely agree. The utility of the design to use multiple ammo types was totally lost with the switch to the half-measure of Streaks on the JVN-10P means you have that ton of ammo for each launcher type- and can't really switch anymore for either. Whatever you brought is what you brought. Obviously the Inferno change means there's no alternate type for the Streaks anyway, but the other rack is either stuck with standard ammo, or with a gimmick type (inferno, smoke, etc.) and nothing else. If anything, the AFFC should have gone the 11P's route and swapped it ALL for Streak-2 racks, four total, rather than just on one side.
Either way, it means the 10P just doesn't have the flexibility it had anymore previously, in exchange for a slight uptick in ammo efficiency- not something the Javelin ever really struggled with much to begin with. It was an attempt to fix a problem that didn't really exist, and created new ones along the way. Not a terrible upgrade in the vein of some like the Panther or Goliath, but sometimes simple is better- don't fix what isn't broken, you know? Simple things like ferro to gain armor, or endo to free up a little weight for a defensive laser, etc., that I'd have been all for, but this was just a downgrade disguised as a new toy.