If the app's devs are interested and willing to supporting the curation that would be ideal, but I believe the plan is that both options will be possible.
HexOS community members doing manual setups of apps will be able to give useful information about features and settings that the curation should include, as you say.
And yes, power users are gonna power use, but the good news is that even using when installing a curated app you can still go change things away from the defaults set in the initial install, so there's really no downside!