It isn't, it's 0% base, whileas SR Assault is 3%. It does have higher base attack of course, but it's unlikely to be exactly the same as a SR weapon.
That said, Pride is already equal to SRs at 85% health, and equal to SSR at 70%. Below that, Pride just keeps getting better and better. Because losing 30% HP is very easy, Pride weapons are generally extremely good.
Their effect diminishes if you run multiple healers, however. And content like Accessory Quests or our recent Nicholas raid where your HP is either hero-or-zero due to extreme single target damage doesn't really play into their strengths either.