JTG and I are in the midst of playing a Space Wolves vs ETC game.
So far what I notice is:
There's sooo much MW, Ignore cover, TK, Disrupt weaponry I got a bit overwhelmed. I understand the need to fight other Titans requires this type of thing but it doesn't make it that much fun versus any other list type and especially when that weaponry has barrages included. This problem isn't specific to the ETC. I find any list where it is allowed to take more titans than a 1/3 allowance seems a little against how the game plays versus non-WE lists. Infantry armies can't do much about them and while they might win a few it's still not much fun when you rarely kill stuff. e.g. So far, after turn 2 the Space Wolves have killed... nothing...

And that's after a Landing Craft air-assault - my best hitter.
Do the Revenenats
have to get a Barrage weapon? Especially with Disrupt, Ignore Cover, Lance?
The army is nigh-on all fearless. Not exactly the best fun really. Sure you can dance around it when it's broken but it's still not that fun when nothing dies and you know it rallies on 3+ from broken.
I was going to mention the powerfist but no need it seems

Do things have to have EA +2 or better? Why not just EA +1 on occasion?
On paper, a warlock with 2x Psychic Lances is a bit OTT. Short range, sure, but 6BP Disrupt, Ignore cover, TKd3?
The argument that Revenants die like flies - I've never seen it. They usually hop around from cover to cover making that a pretty hard ask. It takes a ****-load of firepower to kill revenants. Even with my Tau it's been difficult at times and they're supposedly the shootiest army going.
Anyway, these are just my immediate thoughts on the list.
Thanks Angel.