For a Blaster? Yes. For only PvE, ACC enhancements can be skipped with TD, Tactics, and Aim. 3 slotted TD and Tactics will be roughly equal to 2 ACC enhancements in every attack. TD and Tactics 3 slotted will give you +33-1/2% tohit bonus which makes Archery hit +3s at about 92.5% vs. 2 ACCs giving about 92% . Aim can easily take care of anything else you can't hit.
One drawback to running only Tactics and TD is if you get detoggled then your tohit buffs will be turned off. Probably not a deal breaker but can be annoying.