Apart from SM the nature of wynn's skilks is fine. Power needs to be fixed, like tyrrs.
The main problem is ITEMS. All new gamebreaking items boosted DD classes significantly. Unfortunately on wynn they do not affect the main source if its DPS... Its PETS. Not in a proportion that matters.
Apart from that Wynn has no role in pt anymore. He clearly can't compare to DD classes. Even though he has the tools to play other roles in a pt, semi tank, debuffs, disabler, its abilities are too weak to be viable (compare wynn to druid in wow) .
Imagine that instead of DPS he could use his tank pets and apply mass CW with his new loyalty mechanic?.
It is a pity that the class is left to die.