While you're correct, are you sure you understand it well enough to defend against it?
Here is a way to win a free queen using the Grob Gambit:
There are a couple of high class games between Keene and Basman, they demonstrate why the group is dead and buried at classical level, however it may still claim the odd victim at quickplay level to the unprepared??
The best Attack lol
The Grob's attack is a really good opening.