Fact: distance between sixtail and deva is 6 feet when tailed beast bomb detonates.
Fact: blast radius was lets say 1/5 of konoha.
Fact: deva path used banshou tennin right before tailed beast bomb goes off meaning he cannot use gravity techniques to protect himself
Logical conclusion: if sixtails is able to tank a tailed beast bomb, then he must be the epicenter of the attack, which would mean deva is 6 feet from the epicenter of an attack that eradicated 1/5 of konoha. The same deva was killed by naruto's rasengan, meaning naruto's rasengan >> than being six feet away from the explosion of a tailed beast bomb.
Another logical conclusion(my conclusion) is that the sixtails cannot tank the tailed beast bomb. The bomb went off away from deva and six tails, they were still hit, but not nearly close to the center of the blast, which is why deva showed noticeable damage, yet was still able to outrun the fox.
Sir, I'll let you choose one, either way, in the end, if sixtails can tank a tailed beast bomb, then deva can too, which we all know is false.