There are a few reasons this helps a lot for EU players. First, as Cryptite said in the announcement, many players were having their connection route up to New York and then back down to Virginia (where Loka's host is located), which is not optimal because it adds a lot of distance. However, with eu.lokamc.com it takes advantage of a connection point in Madrid (probably routing to Virginia Beach or something like that, see more here:
https://www.submarinecablemap.com/), cutting latency for people whose route geographically is on the
other side of Madrid.
However, in Asia, the story is a bit different for one simple fact: basically every route to the US comes from Tokyo (or surrounding areas). Creating a proxy to Asia could potentially help with some latency caused by route variation to Los Angeles vs. Washington State vs. Oregon, however, the bulk of people's ping is probably caused by the vast distance that has to be covered to get to the US in the first place. So, in short, a lack of variety in routes to the US coupled with the fact that Tokyo is (basically) the easternmost major city with any undersea connections, there isn't a good way to make it much faster.
So the tl;dr is that an Asian connection point would more than likely not help Asian players much as the majority of the ping that could be improved upon would be coming from the route improvements within the continental US, not from an improvement on which route you take from Asia to the US (Again, basically all of them are from Tokyo to LA). And yes, while it would be
an improvement, it would not be a
large improvement. About ~110ms of the latency comes from going to LA from Tokyo (
https://wondernetwork.com/pings/Los Angeles/Tokyo) and only ~62ms comes from going to Washington DC from LA (closest major city this site logs to Virginia) (
https://wondernetwork.com/pings/Los Angeles/Washington).
