I think the scroll to end is meant to show you the final result, so you can see it at the first glance. I wouldn't mind if it was optional, but I suspect, that it would be not that useful.
Note that the `Next error` action (which I use heavily) also changes the location in the editor. If you implemented the scrolling simply using the existing funcionality, it would be very bad from user-experience point of view: The users could write something in one file and be switched to other file in the middle of a word. So if there were such option, it would have to only scroll the compilation output, not change the document and position. This means, that users would than have to press the shortcut for `Next error` (or navigate to the correct place manually) anyway, if they wanted to see the details and/or fix the error. Which I do want for at least 90% of errors. So in the end, the option wouldn't be that much helpful.