This. Nintendo combining their resources to one console never necessarily meant that it'd happen overnight, nor does it mean we'll see say, 3D Land and Odyssey on the same system. Big Switch titles will require more development resources than Big 3DS titles. But that also means that said big titles can be optimized for both home console and handheld play, and can free up resources for more unique ideas as well, so in a way, it everything evens out.
I still think there could be smaller 3DS type games on the Switch, but that limitation is no longer there. So Nintendo could opt to make more bigger titles than the latter.