The problem is that Land Raiders don't make a solid killing platform for the points. If you aren't delivering a Deathstar into the thick of a fight they are a waste of points.
Yess that is an issue with the all
LR list. So why waste even more points on them? Only one is delivering some so EA is a waste on all the others.
He'll be able to prevent that extra 1-in-12 save from a random Close Combat Weapon from picking off a Terminator. With 5 wounds in a squad, though, I'd be more worried about Power Weapons, Plasma, and whatnot myself though.
Then you haven't used Hammernators alot. Trust me their weakness is their 2+ save not their 3++ save.