I find it shocking people still think the "meta specs" are based on their DPS output.Nah, The ones getting the invites are the ones who do the big dam, but also bring a raid buff, utility, mobility and survivability. And bonus points if they can deal with push/pull mechanics well. That fat FOTM stack of 30,000 logs of Havoc DH speaks for itself. That's the real number you should be looking at.
The overall boss damage statistics are really kind of pointless and there is no way you could even "balance" based on that. If you go on warcraft logs and check for each boss, it varies by a lot some specs do better single target and others do better on multi-target.
Please stop including the overall in this nonsense. How much damage you do on trash between the bosses is irrelevant.