The pericope - Proper 16

Today I thought about why all the commentary for this weeks pericope focus on the "Who do you say I am..." part to the exclusion to the "keys to the kingdom..." bit and that part about "binding and loosing." Could it be that those who profess to hold the keys have done more locking out than inviting in lately? I guess it's getting to the point that they've thrown away so many parishioners that now the church is just a bunch of irrelevant aging priests hoping that they conned the faithful out of enough to sustain their substantial pensions.