It’s too easy to get for what it does.
A good compromise would be, dipping takes a full action so you can’t use the weapon on the same turn.
No dipping from candles and torches. If there’s a raging fire, campfire or oil on the ground that’s on fire, I can see someone dipping to ignite their weapons.
Dipping, if implemented should be a special resource not a common tactic.
That’s my opinion.