User blog comment:Omega natsu2/Fairy Tail's Ending/@comment-24066070-20140626083302/@comment-7418318-20140627153504

We aren't saying it is Lisanna's fault, but she still always was either useless or a burden whenever she was involved in a fight (except for anime-only scenes), which is why people wouldn't mind if she died for good.

Her best involvement in the story were the changes that came over her friends and family when they thought she died after all. In death she was a far more meaningful character than in life.