There is no such thing as bad flight time. But if it is really lopsided it is possible that they may ask about it in an interview. If you say that you wanted to instruct and liked your job for 5 (or more) years and are now ready to move on to something bigger I don't see any problem with that at all. And I don't think any airline would see a problem with that either.

As far as the above mentioned times, they will be great for a regional job. But for a major that candidate would have to get some more substantial ME time.