As far as I know, AMD doesn't have an incentive to improve this limited offering because they don't have chips with a good enough cost-to-compute ratio to get people to buy them if they did get Rocm/hip/etc working.
Frontier and El Capitan will be the first Exascale processors on the planet (now that Project Aurora has slipped schedule).
Both with AMD MI100 providing the bulk of their compute. Frontier seems like it was given development boards of MI100, because AMD is talking about how they already ported some code over to the MI100 and tested it.
