I've not tried WoE with the new emp HP yet, but the idea of higher emp HP sounds good to me. With the old emp HP, WoE is really all about walking for the first 50 minutes, if you are slow graced, you won't even make it to the emp room before the emp breaks. Everyone is counting on last minute, no one bothered with defense, it's basically a breakers' game.
As for countering LP, it's harder than imagined if the opponent prof knows what he's doing. removing is easy, but recasting is easy too, you gonna get a headache if you encounter a prof who does nothing but spamming LP on your emp.