I was being facetious, but technically I do think after about the 2nd race they stuck about a 5k low pass on the track mics, there was a very high harmonic that made me turn the sound off for the first 2 races. Maybe a multiband comp on the Spa race, though, the fizzy turbo-overtone/fundamental balance is different, you hear the "brrrrrrrrr" more than the "zzzzhhhh" now. Maybe pointing shotguns differently as well, the off-axis track sounds are almost non-existent until the car is "in front" of the cameras.
Still sounds weak.
I've noticed an evolution of the sound over the course of the season, and I think that's to be expected. I shall have to try to track down some recordings of the broadcasts to compare. A low pass at 5kHz seems quite radical, but not beyond possibility. There will always have been some EQ'ing going on and at the start of the season they may have been using the same settings as the previous year. Similarly, they have probably been using multi-band compression for years anyway, but set differently.
It certainly doesn't sound "weak" to me, but more "characterful". But then if we all liked the same sounds, we'd all listen to the same music.