That the default should be non-complicated isn't necessarily in conflict with features for power users, and I feel like in the HA forums it often is portrayed as an unresolvable conflict, when it isn't.

I do think the maintainers are getting better about it. The releases over the past year have reworked a lot of things to be more intuitive for casual users while also being more flexible for power users, but there is still a lot of ground left to cover.

I think with the growing popularity, and expansion of fields of use, this is something they'll ultimately have to reckon with. I've seen quite a few posts on the the HA subreddit, where it's being used for controls in e.g. hotels or other bigger buildings, because it has a great feature set and prevents vendor lock-in. There is no harm in also catering to those people & organizations.