I just don't understand why some people dislike Gus Johnson. He was one of my favorite play by play guys for college bball. When he moved to football I didn't think it would work but I was wrong. Apparently he's
putting in time studying the game, so he can gradually do more games and if he's ready he'll be doing the 2018 World Cup. Maybe the hardcore soccer fans have an argument that it's better to stick with announcers who grew up in the game but on the other hand Fox wants to bring in new viewers. I wouldn't bet against him.
The problem I have with the clip you just linked (and maybe what many soccer fans have) is that he's calling the game as if he was a hockey announcer, or better yet, a radio announcer. By that, I mean that his lips are in constant motion. In contrast, most soccer announcers will just give you the names of the players with the ball, and sometimes followed with little snippets. For example,
"Cristiano Ronaldo......now Sergio Ramos......Ramos finds Benzema......still Benzema.....STILL BENZEMA..............GOAL!!! Cristiano Ronaldo!!! (then the color commentator) He made a splendid pass in the box to a streaking Cristiano Ronaldo and Real Madrid now lead 2-0!"
The reasons for this are simple; we're currently watching the game so we don't need a second by second by second recap. Also, the quiet breaks allow you to hear the crowd, which is almost certainly making a lot of noise or singing some team-related song. The best soccer announcers know this, and it's why ESPN typically brings in the English to do the important games. People like Adrian Healey, Ian Darke, etc...