Because if we're halfway through the Switch's lifetime, and game releases taper in the back half of a generation, then more than 50% of Switch games have been released? Because most games aren't AAA or AA games with the budget or resources for second devkits and Drake specific features in order to please the subset of Pro owners who are also handheld players? Because there will be a gap after the Drake launch where teams that do not have devkits yet will be acclimating to the new hardware, while eyeballing sales numbers to decide when to invest?
Perhaps I am wrong here, but I expect the minority of games to have any Drake specific features. The Visual Novels that
@Aether pointed out aren't being developed by teams targeting Drake. Indies aren't going to be leveraging the ray tracing features. Games that "struggle" on Switch will improve simply by virtue of running on newer hardware. Nintendo first party games will implement DLSS by default, the Big Franchises will get some more bespoke engine optimizations, as well as any company that Nintendo pays to throw it on top. The rest will be multiplats that turn on features on Drake that are cut for classic switch, but that are likely not heavily optimized for Drake's hardware, again letting the raw power do the job rather than optimizing for the architecture.
If the Switch lifetime is long and Drake sales are good I would expect to see that situation improve, but I strongly believe that we should assume if this is a revision, that the hardware will almost never be taken solid advantage of. Throwing a lot of power into a revision is about putting enough raw silicon in there that you get inefficient-but-easy-and-ubiquitous wins.
I would be very excited to be wrong about that