Be careful what you ask for if they go down that road. I recall about 30 years of high draft picks. If you want to destroy a winning culture, that's a good way to do it.
No kidding. You don't intentionally get worse to get better when you're evaluated on "what have you done for me lately."
The Saints may have told Moore that he wouldn't be fired after the first season, but I highly doubt they told him he could intentionally make the team worse than it has to be.
Some people are starting with their desired outcome and working backwards to rationalize why their desired outcome is the best possible outcome. That's why it seems reasonable to them to make things worse for the team than it has to be. They want Rattler as the starter and Rattler has very little chance of starting over Carr, so Carr has to go to clear the way for Rattler to start.
By their own admission, Rattler starting matters to them more than winning games. They'd be okay with 0-17 as long as Rattler is the starter. They'd be furious if Carr starts and the team goes 0-17.