The parade was born despite a disastrous rehearsal before their debut. WDW notes, cast members were getting shocked; floats were crumbling and some couldn't even make it to the end of the route. Not to mention, the OG floats weren't even all in 3-D like they are now. Thankfully, things appear to have smoothed out and improved over time.
Interestingly enough, the festival of lights is no stranger to relocation, as the Disney Parks Blog notes it started in Disneyland and showed there until 1996.
After its initial run, it popped back up at Disneyland Resort under the name Disney's Electrical Parade. The parade ran there throughout the '00s and now resides on the other side of the country at Disney World. While the final procession took place yesterday at the Magic Kingdom, it's set to head from Disney World back to Disneyland to do a goodbye run there. Sad face. Catch it while you can, as it might as well be as good as gone.