Just the way media has changed really, 20 years ago and more if you wanted to see a rundown of a load of sports through the year, it was the only place to get it. If I want to catch all that these days I can do it right now, it'll take me seconds to find.
It's in that odd niche where it's too much of an anachronism and should probably just be quietly shuffled off, but you'd have endless complaints if you did that. As I end up saying every single year when Wimbledon is on, there is absolutely no need whatsoever for BBC One to show news bulletins at 1, 6 and 10pm. They have a news channel that everyone in the country receives for free which simulcasts the exact same programme. But try getting rid of it.