KOTCS should not have been made.
Crusade had the perfect finale, riding off into the sunset. All KOTCS has done is tarnish the brand and people's opinions of the series. Sure, a select few may like it, but the overall population despise it. They even laugh at it, at Indy's expense.
The last film does not compare with the other three and leaves a bad taste in ones mouth. It is better to fade away gracefull than burn out. They should have remained back in 1989, with pride intact.