There's going to be power creep.
Yes, when you step into that normal VOD with your crafted +4 holy silver of evil outsider bane and the other guy is in there with his over-9000-alchemical-thing you may not be able to hold aggro like you were expecting.
Gear > Player > Build
He's got the gear - not necessarily the other two.
The nice thing is, you can still complete the raid. Probably even faster. It may not help with Abbot or Hound in the least. It may be unnoticable in Shroud. It may make some eVON6 fights go a bit faster.