Well this particular showcase has gotten a lot of attention already, hasn't it? xD
After the sympathetic portrayal that Chomper's parents offered, I liked the
idea of returning to a more overt sharptooth menace akin to the first movie, which I think is what the filmmakers were going for. Especially because the Plated Sharptooth from LBT V showed that they could still make sharpteeth genuinely menacing. But alas, the fifth movie seemed to be the last one to really get sharpteeth right.
Do you think the useless sharptooth from LBT VI is the ultimate representation of futility in the series, or should another predator/antagonist take that title?
Mm... no, I don't think the sharptooth in LBT VI is the ultimate representation of futility. Or at least, I don't think it's the fault of #6 specifically. #8, #11, and #13 all had more jarring examples of incompetent sharpteeth than #6, imo. #6 may have been the film where it started, but I largely view it as more of a series-wide problem than a
Secret of Saurus Rock problem. Even despite us getting a pretty ridiculous scene where Littlefoot goes inside the sharptooth's mouth, then it wakes up and stands up with Littlefoot still inside, and he still somehow manages to escape.

Still, with some fairly simple tweaking and rewriting, we could've had another solid sharptooth antagonist here. Especially if they'd stuck closer to the
original script which had four sharptooth villains and a more intense climax. Overall I think
Saurus Rock is kinda underrated, but still, that would have improved the film a lot.