There is a potential problem with the open category as will it now be incumbent on organisations like the Olympics having to arrange, promote, televise open events in all swimming events.
The potential time expansion of events may be considerable and there may be presumably a lot of medals being won by a small pool of transgender athletes who will want the same recognition as to their fixed gender peers.
If Lia Thomas sweeps the board every Olympics in the open category and takes home suitcases full of gold medals to the US won't she expect slots on talkshows, meetings with politicians, national recognition etc.? If the same level of recognition isn't given to trans athletes won't this be construed by some as transphobia in itself?