And that's gobs. What's your typical space between the lines in a pair? Five mils? You run them side by side and you'd be hard pressed to make a length error significant enough to matter. Yeah you do need to be aware of it enough to ask whether you're good when you're routing a really weird loop.. but for the vast majority of things and sane routing, you can just eyeball it or don't need to care at all.

Point is, a lot of people seem to think length matching is critical ("for anybody that is working on anything over couple hundred megahertz") and application notes would have you believe as much but the industry experts and theory I've found suggest it's way overstated.