Nah...that TSO was just being an a$$. That is not going to happen.
Maybe, maybe not!
My interpretation is that it will be left up to the individual screener to decide whether or not an oversized liquid poses a hazard and should be allowed past the checkpoint.
This will, of course, lead to a nightmare, as some X-ray operators will call bag checks, while others will allow the items to sail right through. PAX won't know what to expect, and I fear they'll be even more upset than they are already.
Frankly, I resent being required to participate in an annoying charade with every PAX who brings their toothpaste to the checkpoint.
"Ma'am, this item is over 3.4 ounces and thus is considered potentially dangerous .."
"You can see it's just toothpaste! There's nothing harmful in it. I should be allowed to take it through."
"Well alrighty then! Go right ahead .."
The people who give up their item without a fight are going to be awfully unhappy when they learn later that all they had to do was dispute the TSO's claim that it's dangerous, whereupon they would have been allowed to keep it.