The niners have developed this identity of having a risk adverse QB and trying to make up for it with other pieces.
But you have to take chances to win.
You don't want a QB who throws stupid INT's.... But all the great QB's throw picks...the difference is, when they throw the forty yards frozen rope into a shoebox size window and complete it they are stars...you accept the INT with a Favre or Elway because they win the game on that play more often than they lose it.... Niners QB's won't even make the throw.
So to be clear, you're saying the guy who threw for almost 4200 yards and 31 TD's, averaging 9.6 YPC, is afraid to throw the ball downfield? Purdy is not Mahomes, but he's not even close to Jimmy G when it comes to taking shots.
KC has really good CB's, it was obvious Deebo, and Kittle, were both playing hurt, so KC was able to stop the downfield throws. Clearly he's played better in the past but he played well enough to win that game. The fumble by CMC ended a likely TD drive in the first series, and the punt that hit the guys foot gave KC a TD. Take away those 2 plays, neither of which Purdy had any fault, and they win easily.
As great as Mahomes is let's not forget he didn't see a wide open WR, for the game winning TD, in regulation and they wound up kicking the tying FG as a result.
If they had lost that game in OT we'd all be talking about that play now.