Probably because they didn't know what state Kimi was in immediately after the crash, so to avoid showing anything macabre (in case of a brutal/fatal accident) it's probably for the best.
It can be very difficult to determine whether or not the sensor is clean, just by eyesight. Try taking some test shots to see how many spots there are on your pictures. You can do that by taking pictures of something with a white background, like a white wall or a piece of paper, just make sure it's a clean and even surface without holes or spots on it. I usually do it by shooting in aperture priority and at the minimum aperture possible (i.e. f/22 or higher). And I then set focus to manual and use the shortest focus distance. Make sure to fill the frame with whatever background you're using and then take a sample shot. To help determine whether it's the sensor or the lens that is dirty, you can try using to different lenses. If the spots remain in the same places even when using different lenses, then it's the sensor that is dirty.
Keep in mind that no matter how well you clean your sensor, there will most likely always be some visible spots when shooting at such a low aperture. When I have cleaned my sensor and I'm happy with the result, I usually take some shots that are closer to a real-life situation, using a more reasonable aperture. I almost never use smaller than f/12, so this is where I typically test it to see whether I can pick up any spots using that. Using the extreme end of the minimum aperture scale will almost always cause you to see some sort of spots, so that's why I do this.
But once I can't see any spots on the sensor within my normal aperture range, then I'm done cleaning the sensor.
It can be done on your own. You can buy sensor swabs that are made specifically to be used on your sensor. They are usually pretty pricy for what they are, though. You can also get complete kits that contain everything you will need.
There are different methods and ways to approach sensor cleaning. It might seem a bit scary at first but as long as you use common sense and take your time, you should be fine.
Scawen is a perfectionist. There's zero chance it will be released before he thinks it's 100% done. And it doesn't help that he seems to be a very stubborn fella too.
Perfectionism brought life to this sim - but it was also the cause of its death.
I don't know where you have been for the last ~10 years, but endurance racing has been one of the biggest draws of LFS, atleast when it comes to competitive racing.