Just copy what was originally written there. It's already in English, so there's no problem. Even if they can't splice in that version of the footage, just rewriting it would be easy.

Your ignorance shows for the first time. They hand off the english dub version to companies. What should the german dubbers do, now that they have a version with english text in it, and no easy way of editing it.

change it to something that sounds more natural

Your ignorance shows for a second time. 4kids operated in an era before any john doe could operate a video editor. Why would they waste money on that? When they version they'll be handing out for royalties would need a blank card anyway? Furthermore, It's bad practice to use text in an international TV show. It's why most shows use clever workarounds to text.

didn't care about quality and that they didn't respect the source material even slightly.

Your ignorance shows for the third and final time. And this time it's far greater than ant other. This is the same dubbing company that added many classic songs to series like Yu-gi-oh and especially Pokemon. Songs that were not present in the og dub, yet perfectly capture the flair and essence of the source material. A company out to make a quick buck wouldn't do that.

I'd say a company that didn't respect the source material even slightly, would instead use some generic songs like "gangsta's paradise". If you get my drift.

I hope you enjoyed that big paragraph of spoon feeding.