You’re literally coming up with this out of thin air aren’t you. You also clearly don’t understand how any of these items work cause you’ve never used them before.
Hardened Frostguard has a VERY low proc chance, I’ve used it during boosting so I KNOW. Aegis+redoubt when tanking invasion boosts enables you to constantly proc reckoning meaning i’m doing ridiculous amounts of melee strikes in a single second.
EVEN WITH ALL THAT, Frostguard doesn’t proc more than once every 5-10 seconds if even that much. So a paladin who is sharing mobs with other paladins AND isn’t getting 10-15 reckoning procs a second is NOT gonna proc the weapon enough to do a significant amount of damage with it. NOT TO MENTION THE REDUCED ATTACK SPEED OF THE OLD VERSION OF DIVINE SHIELD!
Also the Invasion mobs don’t hit NEARLY as hard as BWL mobs so as soon as Divine Shield drops you’ll get pummelled to death.
You actually have no idea what you’re talking about.