Hey again,
The Overwatch team investigated the reports of players not getting placed on the new GMEC server. What they found is that the majority of middle eastern players are properly connecting to the GMEC server, but there is a subset of players that are getting routed to the EU servers. The reason for this is due to a local ISP routing issue causing some players to have higher ping to the GMEC server compared to the EU servers.
The matchmaking system will attempt to put you on the server with the lowest ping. If you are getting placed on EU servers this means your ping is lower to EU compared to the new GMEC server. It seems that some ISPs are not providing optimal routing to the Google datacenter that GMEC is hosted in. This is something only those ISPs can fix, since Blizzard can not change your routing.
If you have not already we recommend reporting the issue to your ISP so they are at least aware of the problem. The person you speak with will not be able to fix the routing, but the more reports they receive the better so they can track the impact. Their engineers can reach out to Blizzard’s network team via email if they need assistance.