The way corona virus has put us in quarantine position for months (though new cases are going down and people are recovering) , work from home culture is increasing in many countries like Japan, Korea , Italy. In that scenario I guess such platforms fits very well. Where you need to share data with privacy among other party.
I think that will be an excellent use-case, even in single office you don't want your data to be seen and analyzed by different parties. Any solution that do so fit very well in that scenario.
The biggest inspiration for starting ARPA is that there is no ready solution in blockchain that provides privacy for exchanging data. Like there is amazon for Goods but nothing like that for data. There will be many more use-case emerge with time.