I'd like to go back to the ARR-SB days of only having one or two Scions around at a time while the others attend to business elsewhere. It gives more room to focus on a smaller cast while also giving more of a feeling of things happening that aren't solely centered around the WoL. It also let us hang out with other people, like Cid in ARR, Estinien and Ysayle in Heavensward, and Gosetsu and Hien in Stormblood.
Having the whole team around for Shadowbringers was fun because it was a change of pace; we'd never really had the full group around for more than a cutscene or two in a row before, so some of them barely got to develop or interact (especially poor Urianger, who rarely did anything in the MSQ up to that point). But after two expansions in a row, it's not fresh anymore. Give us a break for a while.