Newest Lam release notes say this:
Is this a functional change to Spell Ward paralysis, or a descriptive change? Because anti-paralysis effects have NEVER done anything to block the slow from Spell Wards. From the way this change is detailed, it sounds like a text description change only.The duration for Spell Wards, Bear Traps, and Net Traps has been decreased by 20%. Additionally, the Spell Ward paralysis effect now clearly states that it can be prevented by anti-paralysis effects.