You're cherry picking whiffs from Howden and not doing the same for Gauthier - who, fwiw, takes some really lousy penalties resulting in lost "trust" from the coaching staff. Howden has been averaging less and less ice time each year under Quinn and, pretty clearly, the coach thinks he's the better PK option than either Gauthier or Blackwell. With playoff fantasies still on their brain, it's not really the time to see if Blackwell can actually play the PK or not.
Again, it's a lot of huff and puff about a guy who probably plays eight minutes a night at even strength and is a decent option on the PK. I just don't get it. Gauthier had a bunch of shots and he's clearly either not doing something that's specifically being asked of him or not doing something well enough to stay in the lineup. That's not on Howden, that's on Gauthier.
If we're looking at why we're in the spot we're in, look at Zibby's first 20 games, Panarin's leave of absence, our goaltending leave of absence in the first 15-20 games, etc... Howden isn't why we're in this position. He's a role player and replaceable and likely will be in the near future.