There are many different definitions of what a "spoiler" actually is. E.g. we had a customer complain earlier this week that the image had the picture of the race winner, however it was just a coincidence and he didn't actually "know" it was a spoiler until he saw the result. Thus not a spoiler.
We recently released an update to the app to remove video duration from the spoiler free page, as we had complaints that knowing how long an event ran was a spoiler.
We have also had feedback that scores in titles of older matches is really useful, as it helps users choose good matches to watch again.
If you look at half the clips available in the app, it would be impossible to provide a spoiler free title without making them completely meaningless.
Thus we have what we have now - editors enter a default title, and a spoiler free title when the asset is going to be included in the spoiler free section. It's manual and susceptible to human error.