Not sure why this is a surprise. The majority of early QB picks bust. It's not even close. Look at our division: the Jets, Bills & Phins drafted QBs high for many decades.
Here's the list of QBs these teams have gone through since Marino, Kelly and Pennington (heck, if you skip Chad & go to O'Brien they drafted a bunch of other losers before Pennington as well, like Browning Nagle).
1st rounders: Tannehill, Bledsoe (1st rd trade), Rob Johnson (1st rd trade), Manuel, Losman, Zach Wilson, Darnold, Sanchez
2nd rounders: Pat White, Henne, Beck, Culpepper (2nd rd trade), Trent Edwards, Todd Collins, Geno Smith
15 picks of QBs in the first 2 rounds by our rivals in the division: all 15 were wasted picks.