Error warning on import is insufficient

I recently did an import and got an error warning that two rows weren't formatted right. I almost completely missed the warning and just clicked the green import button. I went ahead and clicked import and it imported lots of rows until it hit the error...looked like it even completed a few rows after the error, but not all the properly formatted rows.

I think it should throw a pop-up error warning if you click the green import button and it is unlikely to import properly.

A partial import seems worse than a failed import.

Also, it wasn't easy to identify the improperly formatted records, though the warning knew it was 2 out of 150... it didn't highlight or show which two it was or what/where the error was.