IGN on why Dark Souls will be so good on the Switch, it's the "portability" that allows a game like this to be played more and in smaller manageable time frames whenever you need to, it's a hard game that requires a lot of time, playing "anywhere" "anytime" helps with this
http://au.ign.com/videos/2018/01/15/how-will-dark-souls-remastered-be-on-nintendo-switch
It appears anecdotally that games get more play time on the Switch