Because they don’t intend to limit visa, it’s just a symbolic action as usual to make you feel good. In the bill, a program allows other countries to visit US without visa,if they stay for 90 days. That means anyone can over-stay without question asked. Another way of importing terrorists, that’s how they lie to you.
Exactly Libertynotfree, All that will happen is the fake passports they are using now will be redone so they don’t show any visits to Syria and Iran. Done! They will now comply with the feel good law.