Well, in defense of the Status-Quo, her hubby had to risk his neck (pun totally intended) for the Sharptooth to fall
Status quo?
Well, the Status Quo that her hubby is the main fighter

He can deal with Sharpteeth on his own (as in, no other Longneck needs to get involved), but she still needs help (him tripping the Sharptooth she rammed) to bring a Sharptooth down. Not to say that she couldn't have done it on her own, but just saying at that particular moment she needed help...
Speaking of the tenth movie, I am rolling on the floor with laughter every time I watch her join the battle:
Random Longneck: Don't go, there are Sharpteeth out there!
Grandma: So is my Grandson!
What about your hubby, dear? The one you're going to help? Or your son-in-law? Nope, they're not important enough for her

Screw you if you get nommed, as long as Littlefoot is okay, she's fine with it
