That only applys to very few cases, most set bonuses through out time tbh have either been useless or pretty nice. Only on a few classes did set bonuses ever become must have and that's a problem with the balance of that class not the balance of the set bonus IMO.
Your entire post made me laugh a little as you seem a little disconnected with the QQ of most classes, allow me to iterate.
When Vastin made blue line hunter changes very few people were arguing that damage was too low as damage was still fine. The highest complain was that the class was too clunky and boring to play. Same goes for minstrels. People don't like induction as much as they did before or as much as people do in WoW, and we even see this in dev changes. Very few induction classes are actually inducting for more then 1.8 seconds and bolsters induction (with anthem and follow up) us about 1 second.
Actual feedback for Vastin\
Just bring back the old follow up, the old cry of chorus and buff raise the spirits actual heal, maybe introduce a 1 second cd for bolster, then you're done easy peasy.
Also, since I have you here, please for the love of god buff these stat LI legacies they are pure trash atm https://cdn.discordapp.com/attachmen...98/unknown.png