Everyone knew that Lukas Van Ness was raw. Or, they should have known at least.
Setting aside the fake stats about how many games he started in college (which don’t matter because Iowa makes their more senior players nominal starters whether they play more or not), he did not have an extensive college resume by just about any conceivable measure. That he’s still raw now isn’t a surprise; he’s only been through OTAs, minicamp, and a couple of weeks of training camp. It’s not like he would have really remade his game in a meaningful way by now.