I'm not thinking about so much as now, but as for having it for future use.
It may take awhile, but it might die down. As most rides can be like that depending on the day / season with single rider lines, but most of the time it's pretty chill. However, while it's been a couple of years since I been to Universal, Gringotts still would have daily closures of the single rider line (even though it had been out a couple of years) no matter what day it was due to people using it to it's advantage. It was the only single rider line I didn't use unless it was early in the morning.
I have a feeling Hagrid's coaster will be the same, but it's better than nothing.