But those short arcs will still pose challenges in front of the SHs, challenges that won't be surpassed easily... be it for Caesar/Slimey-kind of dangers or for Katakuri/Doflamingo kind of dangers.
If the SH were already a crew able to defeat the Beast Pirates by themselves, Kidd, Killer, Law, Marco, Drake etc.. wouldn't be necessary here.
I disagree, in Laugh Tale we'll probably have only the SHPs and the BBPs. That's when we'll see 2 real Emperor crew going '1v1'.
If they reach that level before, where's the challenge?