Yeah it's an amazing port. Only downside would be the random occasional crashes/softlocks but apparently those issues were also there in the original release, with worse framerates as well. Think it's only a matter of time until they get them fixed, but even then, it never bothered me.
Edit: as for the video itself, it's really cool how the devs gave DF footage from development, and insight on how they went about optimizing it. That bit about the lighting blew my mind, it's crazy when you start realizing just how much work and effort was put into this.
I've seen other posters more informed than myself that the devs have tweeted that patches are coming to fix these issues.
I've slept on the first Ori, thinking that it was a good 2D platformer, but would probably be another grain of sand on the beach full of 2D platformers on a Ninty console. After seeing reviews for both games and seeing that a physical collection is coming in December, I'm going to jump in.