Dat was Great! is a lackluster tactic. I really like the design concept of this tactic but noyone slots it.
2. History

Referenced via the prima guide
3. Explain why it's an issue.
The toughness debuff from the current version of Dat was Great! scales with the brawler tree. This tactic does not follow the normal stacking rules of ability + tactic + morale. Meaning, if you stat steal toughness it does not stack with this tactic. Because there are easy grabs for group compositions to get a ability toughness debuff this tactic is nearly useless. Currently the only benefit you get out of running this tactic is the longer duration on the armor debuff which doesn't have a lot of value. Hence a near worthless tactic.
4. Propose a viable solution to the problem.
1. Allow Dat was Great! tactic to correctly use the stacking rules of ability + tactic + morale. Meaning Dat was Great! would now stack with the stat steal of toughness or ability toughness debuff's. Note: Obviously, do not allow for this tactic to stack with the Hurts Don't it tactic from the shaman. If Dat was Great! was changed to this option it will not steal from the importance of Hurts Don't it tactic. Hurts Don't it is applied from the safety of range, steal's morale, is magic damage and guarantee's a full 240 toughness debuff if it lands. This tactic would only apply the tactic toughness debuff and the BO would have to fish for a toughness debuff via stat steal to fully debuff ability + tactic or get a toughness debuff from group composition.
2. Allow Dat was Great! tactic to stack x times. It could be 2 times or 3 times.
3. Combine 1 and 2
4. Not really a solution but since we are currently on the topic of Dat was Great!, and assumed Dat was Great! tactic is fixed, should the duration be changed due to the new power level of the tactic?
5. Not really a solution but given a increased powerlevel should Keep it goin'! 3 point tactic in the brawler tree be swapped with Dat was Great!?