Playing devils advocate here. It could just be that they already have the stack trace in logs somewhere, so how does this help you any faster? Bulk of the time to resolution will be figuring out what to do anyways.
Most of these couldn't be reproduced either. As in, you'd get a crash once a day in a page that would otherwise work successfully thousands of times.
How would you fix a problem where there's a stack trace only from a release? The scenario is: you can't reproduce the errors, you don't get line numbers, you don't even get function argument values.
I could solve these in minutes using this tool. Could you match that without such tooling?