The power hungry developers you speak of are hardly on the Switch to begin with if a developer wanted power Switch isn't the first platform they go to at all what they do will have no bearing on its performance do you know why Switch has so many AA and indie titles? It's because they barely can get a look in other platforms, PS and XB brands have helped pushed the AAA notion so much that the majority of players who purchase the platforms mainly focus of such high budget title the result is anything not in the same ball park tends to get overshadowed hence the one factor that offsets this is the Switch where AAA focus is not a thing this is why games like Hollow Knight and other similar titles put Switch ahead of PS4 and X1 in most cases.
These developers aren't concerned with pushing hardware they're more focused on pushing concepts ask yourself what is more power going to add to games like Octopath or Silk Song? Nintendo aren't concerned about what developer is happy or not because they learnt with the WiiU that trying to please developer is a fruitless task for them so instead with the switch they moved on to make sure things were perfect for one particular developer themselves their own consolidated support is enough to carry their platform to a position where it becomes too big for some entities to ignore
Trying to please AAA devs that are never happy is fruitless, I agree, but while turn based combat and also some new concepts can be implemented with little HW power, others require more, and even many frugal 1st and 3rd party devs will eventually start needing some more CPU power and main RAM, I'm not talking about graphics, but, for example, larger gaming worlds with higher level of interactivity, better AI, more items and NPCs. And I'm not even talking about now, but late 2023 or early 2024.