I still don't see the issue with modpacks, it's exactly the same as someone including a piece of artwork in a dA group folder. They still get credit for it.
Besides, it makes it harder on the rest of us when we have to either send out our packs to people individually or find a roundabout way of distributing them to people who play on our servers, which I currently have to do both for mine. It's a pain that never needs to exist, I've never had that issue with Garry's Mod and I've never had that issue with DOOM mods, why is Minecraft so different? What makes Minecraft such a special snowflake?
Maybe when Mojang stops dragging their feet with mod support they'll implement a tool for server players to download all the mods on a server automatically like how games made with a modded DOOM engine work. (SRB2 being one of them) Then it'll be significantly less of a headache. Hopefully mod support in general will be less of a headache by then, wouldn't it be wonderful if ID conflicts weren't a problem? I bet that would erase concerns on both ends.