Sure, there's absolutely no reason for customers to know or case, but that's beside the point. It's going to be the developer's job to modify or fix things in the future. You're happy with the footbridge they built, but when sales comes back and says "okay new customer, now we need to be able to drive fully loaded Humvees across" you aren't the one tearing out the wooden posts and pouring concrete.

How much enterprise software have you used over the years that has terrible quality? Vision and execution matter a lot in user experience and doubly so for security.