Pretty sure they can fuck your rogue up in a HoJ with scatter trap on the disc?
Then that means they're doing a completely different strategy than what the original person complaining about ret/hunter/pri said, which is just "tunneling our priest"
Not only is HoJ + Scatter Trap already a different scenario, its way easier to deal with than a zerg on your dpriest. You could: trinket the HoJ, trinket the trap, eat the trap, CC the hunter after scatter, have the rogue LOS... etc.
Your post indicates that his response is not useful, but I don't know why...