WHY will it be more tolerable in the day of judgment for Sodom and Gomorrah?

"The inhabitants of Sodom and Gomorrah had enough knowledge of

God and right and wrong to be morally accountable and justly entitled to the fiery destruction that descended upon them. 

--But our Lord declared that it would be more tolerable in the day of judgment for Sodom and Gomorrah than for those cities that refused to receive the message that His disciples would bring to them.
Q: Why? 

A: Because the disciples brought a revelation from God, received through Jesus Christ. Said Christ, “If I had not come and spoken unto them, they had not had sin: but now they have no excuse for their sin.” John 15:22." 

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