https://steelersdepot.com/2018/09/fi...ean-things-up/
Nice breakdown of one difference between KC and the Bucs game.
Also highlights that coverage "breakdowns" are hard to determine. In the Bucs game, the coverage is designed to leave the short sideline route open in order to distribute safety help across the field.
I think we should all remember that when an offense puts 4 or more out into pass patterns, it is almost impossible to not have one of them "open" or even "unguarded" by design.