Geolocation vs mdg:geolocation?

Why is there two (this one and this one)? Why isn’t one of them hosted inside this one is old, see the red flag. Use the second one.

Why should it be in the core repo?

That seems to be a pattern with other packages by Meteor. At the very least MDG should delete one of those from Atmosphere, or api.imply the newer one in the older one.