Reducing friction would be nice here - I don't remember encountering the crash log screen, but if you could file a bug report right from that screen, that'd be perfect. A lot of information can be pre-collected at that stage - precise version, build, OS, architecture, processor type, etc. All that'd be left is the "What I was trying to do", my e-mail, and a checkbox if I agree with the privacy policies and if I want to receive e-mail updates about this bug report.
> you can do your own build with debug symbols
It'd be great if the Document Foundation helped distros to offer libreoffice-*-debug packages for this case - if it's crashing for you, install the debug version and your crash logs will be a lot easier to read.