If that is such a perfect way to avoid getting sued, why don't they put that on every page of their website and train all of their customer service staff to say that when they talk to customers?
And maybe employment contracts have language that offloads liability to an employee if they go rogue and start giving away company resources. Chatbots aren't accountable in any way and we don't know yet if their creators ever will be either.
And disclaimers are used in lots of contexts too.
I still.remember when Microsoft updated thr 360 TOS to force arbitration the day after it was deemed legal in a completely separate case.
Rest assured there is an incoming flood of TOS updates.