I feel like when people are wondering about the Switch vs Xbox or even PS4. They forget there was a generation where Nintendo had a massive hit console and it still didn't impact the PS3/360 games. Considering the power of the Switch and the architecture I don't see why this would be any different.
Wii had a massive, if not temporary, impact on the industry though causing both Sony and MS to add motion controls to their consoles post Wii launch. Some of its effects can be felt today through VR and Xbox One's botched initial launch with Kinect 2.0.
Nothing wrong with speculating if Switch could garner a similar reaction from MS or Sony or even a new player should it's success continue along this trajectory.