Meh, yonkos still have the portrayal advantage at least if Oda now wants to make blur even that yonko-admiral border, but I doubt that. Anyway every yonko has his personal form of hype: there is the one with (mosy likely) strongest coc, the one who can bot be killed, the one with 2 df etc while the admirals lack that (you see that the admirals, powers aside, are often treated like a border area in a story about pirates), admirals lack that, they are only given powerful df to cover thevrole properly but there is no real hype like for the yonkos behind them. Then we have marines cover in fear each time 2 yonkos met amd finally, canonically, each era had his ruoer and that ruler had always been a pirate and so a yonko albeit the strongest of course. We, as rulers, had Rocks then Roger and finally WB. Now we lack a again a true ruler in OP world but let's say that if Juventus FC won the serie A 9 times in a row you can't expect Albinoleffe to win it next year out of the blue (then Leicester happens but I don't think this is the case lol). So in OP world there has always been, as far as we know, a pirate so also a uonko who was more powerful than admirals (and other pirates too).