It's closer to ~20% weaker. All damage was reduced by 20% due to the buff to resil.
55k * 2.25 * 0.2 * 1.47 = 36.4k healing absorb with patch 5.4.7 (live)
55k *2.25*(1-0.75)*1.47 = 45.5k healing absorb with patch 5.4
36.4k/45.5k = 80%
Well, I don't have any screenshots so I have to rely on my memory but I'm pretty sure 55k AP last patch gave you at least above 50k absorb, not 45k as the math lets us to believe.