Lamar Jackson was an absolute stud in college. Anthony Richardson threw for fewer yards in his college career than Wilson did in his senior season. Lamar Jackson threw for 30 tds and rushed for 21. He was insane in college. Lamar Jackson is infinitely better than Richardson. Jackson also had a 59% completion... Richardson had 53%. Lamar also threw for 3,500 yards two seasons in a row. Anthony Richardson started one year for 2,500 yards.
I certainly agree regarding college production, and nobody is arguing that Richardson's college career was amazing. It's a viable question to ask why Florida didn't win more. However, I think you would agree that the difficulty in drafting QBs is that college production doesn't translate to NFL production well in either direction. You seem to be very heavily projecting college production to NFL production which sometimes works but often doesn't.
My argument is that if you look further into what Richardson did well in college then you can see that translating to the NFL in a way that it doesn't for many project QBs. Richardson actually hung around in the pocket looking to pass and only took off as a second option. And while his accuracy was inconsistent, his best plays were also many of the best plays in college football last year - against high level competition. Utah had a top defense and Richardson made a few plays against them that very few NFL QBs could make.
NFL teams look more at what a player can do then what they can't, because they all view themselves as having talented developmental coaching staffs. Right now there is a GM asking his coaching staff about how they would fix Richardson's mechanics, and the coaches are responding positively that they could do it via X Y and Z. They would much rather take a guy with amazing traits that they can coach up over a polished product with lesser traits who might be closer to his ceiling as a player.
Look at how the Saints beat us last season with Tayson Hill. Richardson has a better arm right now and is significantly more explosive as a runner. If he's still on the board at #6 I would be surprised if Detroit didn't take him despite what they say about Goff. Campbell would love to have a dominant run game and Goff has no guaranteed money left on his deal. I do think that Richardson will be off the board before that though.