Traffic information couldn’t be given any earlier is complete nonsense. Yes AEM at the time could have been with different controller to JFQ. However the controllers are very capable of communicating with each other. Everywhere else in the country you can and will be given conflicting traffic information even if one of the other aircraft is on a seperate approach/area frequency. To be given traffic well after your descent and only 1000fr above the MSA is just ridiculous.
Hopefully some serious procedure and airspace changes come from this.