the word tanked came from pistols in ww2 hitting tanks it would often not even leave a scratchIt did more damage on the molecular level than physical...his armour come off showing that rasenshruken did dmaage,
Aka if it was the real third raikage, he would most likely never be able to use ninjutsu again after taking the hit
Did he tank it? in a sense he did , mostly because of edo, But it comes down to what you consider "tanked"
Living through something powerful? sure he tanked it, so did kakuzu
he might not have even lived if it had not for him being endo