Swiss trains are not bad and they are undoubtedly kept clean, but the punctuality is rather a myth. Especially commuter trains regularly have significant delays.
Swiss trains are not bad, but not necessarily "better" than other railways in Europe and certainly not "best".
I have also been on trains in a bunch of different places and I never been in a place where I thought, man train travel here is better then in Switerland.
Some inner city transport is certainty better in many places.
The guy who made this video is the opposite of a tourist board member, he is somebody that has spend most of his live traveling around.
Mind you, commuter trains with 30 minute intervals.
Check out Swiss newspapers, plenty of complaints.
And again, I didn't say Switzerland is worse, just that all that praise is mostly a hype.
Nobody claims Switzerland is magical, but that doesn't mean its wrong to make a video to give some props. Its not hype.
Your personal experience seems to differ quite a bit from mine, as I can't say Swiss trains are better than your average (Central) European trains. They may be a bit cleaner, but that's about it.