A pilot who did his checkride with the same DPE as myself fatally crashed, and after some investigation, the FAA decided they wanted to reexamine all pilots who did their checkrides with him around that time. But as it turns out, any pilot who had gotten an additional rating since then (instrument, commercial, etc.) were exempt. So many of us (myself included) decided to go get a seaplane rating.
Anyway, I called the FAA in Atlanta GA and talked to a lady named Ms. Wigglesworth, and she said it would be totally fine if I went and got a seaplane rating and was even willing to wait for me to schedule with a flight school (I went to Jack Brown's Seaplane Base in Winterhavin Florida).