Thats not quite how it works though. The attack level (331 in this case) relates to the level of enemies you can attack without penalty to Your impact damgage (Damage per bullet) The individual stats and perks of the vault weapons for example fate bringer with a super fast reload on a crit kill and firefly completely outclasses these new standard legendaries in almost all respects. Compare fatebringer to Devil You Don't or even TFWPKY 1969 and You'll see what I mean overall fatebringer brings far more to the table in terms of overall stats / balance and this applies to almost all the VOG weapons. This is without even factoring in elemental damage on the primaries which makes them invaluable in weekly nightfalls with a arc/solar/void modifier. To say any of the new legendary weapons at 331 are overall stronger than the vault primaries because of the attack stat alone and not factor in all other factors is nuts. Its like saying a rocket powered dragster is a better car than a ferrari enzo as its faster in a straight line without considering handling etc.