I take the risk that if there are government restrictions imposed plans will have to change (they have for me already, I was supposed be on Eurostar to Disneyland right now instead of in a Wetherspoons) but this feels more of a business decision than that.
It's a business decision in the sense of "if we prune our timetable, we will be able to operate what is left much more reliably". It's a prudent decision that has had some unfortunate effects, primarily caused by the fact that they have sold Advances on it.
I’m currently on a weekend away (long weekend!) and am of the opinion that I need to keep on living, as long as I take action to reduce risks. I have brought so many masks, LFTs and hand sanitisers with me!
To make it clear I wasn't saying "it is imprudent for COVID risk reasons" (there's another subforum for that sort of discussion), I was more saying that "because there is such a staff absence problem at the moment, it would be imprudent to plan something non-changeable that required rail travel to be viable, particularly late in the evening". That's easier for a driver to say, of course, but if I didn't drive I would be much more cautious in my planning, and would certainly not book anything non-refundable and non-changeable of significant value that wasn't also reachable practically by bus / where a taxi would cost too much due to the distance.
In essence it's the same as if there was a known period of industrial dispute coming up, as the effects are basically the same. As a comparison, I'd not have booked a non changeable evening theatre visit if I didn't drive and I lived in Southernland while the DOO dispute was going on.
It's not true for some in here who seem to enjoy doing so, but I plan my life such that I'm not likely to need to go around sueing everyone.