As if by magic, I've just been sitting, in my car, behind an ASL and watched two bikes filter outside the line of traffic and into the ASL. The lights changed and he spent several seconds dithering. He had gained no safety nor distance advantage, and seemed quiet put out as I passed him.
Ahead of them on the other side of the junction another biker sat safely in place in the line of traffic.
Filtering is filtering. I do it myself on my bike all the time. But if I should find myself out in the path of opposing traffic I've got no-one to blame but myself. Filtering is a choice, and along with it comes acceptance of the self-imposed increased risk.
Bikers do not need to be given access to ASLs to increase their safety.
Claiming that and ASL is an essential safety refuge for a biker is complete nonsense.
So what benefit do ASLs give to cyclists by this reasoning. The only benefit motorcycles have over cycles in traffic is acceleration off the line and the fact that they can always hold their position in a moving line of traffic.
If half a dozen cars overtake you on the approach to a set of lights, then you filter through the ASL to the front of the queue, then they overtake you all over again. Every time they overtake you, it introduces the risk that they are going to take you out, so it could easily be argued that ASLs introduce an increased risk in to a cyclists journey, and they do nothing to increase the safety of a cyclist in town traffic, and far from offering a safe refuge, further and antagonise already irritable drivers by getting in front of them when they see a green light (especially the Nissan drivers

You have just as great a risk of the lights turning green when using the filter lane on a cycle as on a motorcycle, and as most drivers aren't using their mirrors when they are going straight ahead on a set of lights won't actually see a cyclist filtering up their inside until they appear right in front of them in the ASL.
The risks to cyclists and motorcyclists are just the same when filtering through stationary traffic. It is obviously a long time since you did both MrP!