There will be times when reconnecting isn’t everything you had hoped for. Time can change relationships. Interests change. People change. A bond once treasured can evolve into something you are better off without. It happens. It is neither a good thing or bad thing. Sometimes it’s just a thing.
What is most important, I think, is growth. When making a decision to rekindle a relationship that has fizzled, consider growth. Consider how much growth each of you have had. Also consider the directions in which you have gone and are going. In some instances the person you remember is no longer there. In others, you may be able to pick up right where you left off.
Just remember not to accept a connection that can stunt your growth in an attempt to bring back what was. It is okay to remember and appreciate how things were while accepting it is no longer. It is okay to protect your present state.