I believe it is a carbon copy of other FAA certificates such as a Private Pilots Cert. My Private Pilots Cert has my ratings listed as Airplane Single Engine Land, if I had a Seaplane rating it would be listed there also.
The Limitations would be if you had certain medical conditions or special reasons why you could or could not do something.
At this point I do not believe any of those impact the Remote Pilot Certificate.
Also the # to the right of the "XII Ratings" is actually your cert #.