I think they cut the sound of this particular point at some stage because the commentstors were chatting about having to pee etc. at some stage when interviews should have been playing but weren’t and we were looking at a black screen hearing them talk. Probably just a one off.
I thought that at first as well, but when I loaded it on the workaround there was audio. So it's definitely still blocked.
For other Belgians I double checked in the chat this morning and no feedback on whether we'll get Dutch audio either:
Me: Hi, are Belgium getting Dutch or English this season? Yesterday I was trying to watch the show after testing and all I could see was Karun Chandhok talking with no audio. The only audio I got was when they were showing cars.
--- Chat started ---
Agent: joined the chat
Thank you for contacting Formula 1!
We cannot offer English commentary in Belgium just yet due to contractual agreements in place in Belgium
Me: Any idea on when? Also, the Netherlands is now joining. Can't we get Dutch from them then?
Agent: We're constantly trying to get around these restrictions, but as you can imagine, it might take a while for us to legally sort things out in your country
I suggest keeping an eye on our website at formula1.com for any future updates
Me: Sure I can imagine, and I do keep an eye on it. But what about Dutch? More than half the country speaks Dutch
Agent: We do not have an update on Dutch commentary either at the moment
We hope we'll have more info to share near the start of the first race in March