Please invite customers to share information and data that helps Tableau to support maps for their areas of interest.
I think about geo-codes, filled maps, and language, but Tableau knows better what is needed.
Customers might wait forever without ever seeing maps supported for their area unless they do all the work themselves.
This can be too heavy because it both involves collecting needed data and deep technological knowledge.
Limiting customers' work to collect needed data reduces their part to something which is bearable.
Having customers doing the hardwork of collecting needed data makes it easier for Tableau to support their area.
This is a win-win scenario. Current customers get easy maps and Tableau gets delicious baits for new customers.