*sigh*
The problem with this thread is it's based on an eye test that doesn't match what actually happened on the ice. It is biased by OP's opinion. So every isolated incident that fits the narrative gets magnified. Every event that does not fit the narrative gets forgotten or ignored.
Here are some relevant individual stats for our centers:
Based on the shot attempts he has taken, Bennett has been the second most likely to score a goal (ixG60) for every minute on the ice, has less giveaways than Monahan, and a better faceoff percentage than Monahan.
OP also suggested he is being "thrown to the wolves" and not sheltered. The data disagrees:
Bennett has not had the worst quality of teammates (Stajan, Backlund, and Monahan have by the different metrics). Nor has he had the highest quality of competition (Monahan has faced the best defensemen and Backlund has faced the best forwards.). Nor has he been forced to start in the defensive zone the most and offensive zone the least (Stajan has).
On a line level, the Tkachuk-Bennett-Brouwer line has been the Calgary Flames' most effective line as a result:
They have generated the most shot attempts and unblocked shot attempts, they've taken shots closest to the net, they've had the highest expected save percentage (xFSV% / defense), the lowest expected goals against (xGA60 / defense) and as a result of all these things, are the only line on our team close to even in high danger scoring chances (SCF%) and the only line actually expected to score more goals than they allow based on the shots being taken when they are on the ice (xGF%).
TL;DR:
Maybe they're not a top line yet, but they have not been deployed like one. The way they have been deployed, they have been successful in terms of creating chances AND preventing them. Goals will follow. They will make mistakes, but nothing so far suggests they are a line that needs to be broken up or that Bennett is unsuccessful at center. If Bennett is "getting caught" so often then why are his defensive metrics the BEST on the Calgary Flames?