Yea i mean everything works fine no error while playing a game it happens when you turn the 3ds off mainly to error pops up and it gives u a option to save it to a folder or power off so not really bad but just anoying.
The reason you got the error dumps was because well..... luma supports error reports now. The 3ds would have crashed anyway, but luma displays an error report right before it crashes. Most people blame it on b9s instead of the 3ds itself. You are completely safe to update.