Intelligent/good players however can distinguish between those and actual balance issues.
ATM:
1. Nightblade skills need to be fixed (many are bugged)
2. Immobilize roll dodge break needs to add 7 sec immunity like other CC break (fix Dark Talons)
3. Ultimate Cost Reduction needs to have a hard cap to prevent people from spamming ultimates
4. Shield bash could probably use either a damage reduction or a cost increase
Other than those, the complaints are unjustified.