Doubtful.
Launch coasters by nature are finicky (look at all the trouble VelociCoaster, Hagrid’s, and Top Thrill have with their launch). RNRC was built at a time where they were even worse than finicky: they were downright temperamental. They’ve had issues with the ride’s launch and breaking for years, and along the way have done the best fixing they can with limited time offered to them.
My guess is on the last refurb, they did the same sort of repairing they’ve always done to it. But due to the ride’s age and a long history of quick solutions that created a sort of piecemeal hodgepodge of solutions, they realized it was time to do actual serious work on it.
We know much more now about coaster launches than we did in the late 90s, and Vekoma especially has learned a great deal. I think the last short refurb was an attempt to do some serious work on it but they ultimately couldn’t do all that needed to be done, so they’re doing it now.
Unfortunately, I don’t know that we’ll ever see it be truly reliable. The ride type just is generally unstable. Universal experiences the same issues with their launch coasters as this (VelociCoaster especially has a wheel overheating issue). Its the risk you run with launched coasters.