I totally agree we shouldn't need a feedback loop for MM and Server Browser, however, most of the topics shouldn't need input from the community either. At most, if someone had some cool ideas for custom game modes.
Maybe they just don't know, if they are younger developers, maybe they grew up in an MM world. However, not only does a Server Browser give you some control over how/where/when you play, it also brings the community together.
Just say I was going to play C128, but instead of using MM, I go to the Server Browser and see that a lot of people are playing BT64. I may change my mind and join them instead. A lot of times I would just go to the server with one or two slots open playing a map I want to play.
That is the other thing, MM doesn't allow you to choose the map you want to play on.
Finally, some people, depending on the region and when they play, can't play at all, ever, because of MM. This is borderline criminal.
So adding a SB would be a huge step to bring some people back. I know I would play more with one.