You know why it crashed right? Too many bronze players were in the district and the district closed itself in order to cater to the majority threat color. Is it smart? No. Should it exist? No. Before colored districts were even a thing you would hear people complaining once in a while about unfair match ups, and after the color change the number of people complaining multiplied exponentially.
LO should do the right thing and remove the stupid threat district system since no matter what you're always going to have people complaining. Anyone saying that it would be completely unfair, let me propose this concept, in order to get good at something you have to fail plenty of times but you learn from each mistake you make, if anything the noobs are going to have a rough time at first but they're going to learn every tip and trick much faster.