I don't think he's saying he's hearing impaired simply because he doesn't agree with him. He's saying he's hearing impaired because he can't detect a quite obvious difference in sound performance between the S8 and S9. I didn't test them, so I don't know. Just clarifying. Now if the vast majority of people can hear a distinct and noticeable difference between the two, and the reviewer can not, it could very well mean that his hearing is impaired.
It "could" sure .. But I prefer to talk about actual things versus just assuming stuff about people
. I have learned from sound comparisons it will definitely vary from person to person. He is saying he is hearing impaired based on what he thinks... As in he doesn't agree w/ rush so therefore he is hearing impaired.
Also MKBHD didn't say "Omg these speakers are the worst" or anything. He literally said "The speaker got a slight improvement, but it is in the same placement at the bottom of the phone. They added stereo listening with this earpiece one at the top of the phone... and from listening to it it is a bit louder but not
significantly better in quality or anything".
So he didn't say it was worse.. he just said it isn't "significantly" better. Also to be fair this is a "first look" type of thing. The full review he usually dives more.
Reviewers can be wrong. I disagree with them all the time from reviewer to reviewer... I am just not going to instantly call someone hearing impaired simply because I disagree on one point out of the whole video.