Great advert which will hopefully attract people back to the railways once the summer leisure boom ends in September.
I kinda get what some posters are saying about the level of service in some parts of the country and questioning whether the campaign might be premature. However, I would opine the following:
We are now in the middle of August and a lot of advertising is aimed at readying consumers for a future event, e.g. back to school clothing adverts in July (often before the long vacation has started). This commercial imho is aimed at encouraging people to get back on the trains in the next month or two, i.e. when a potential return to the office might reasonably expected to start.
The current level of service reductions and cancellations appears to be down to a combination of 3 issues coming together at once - the pingdemic (which should be over very soon as more people are double vaccinated and don't need to self-isolate), peak annual leave and lack of overtime volunteers season (should resolve itself in 2-3 weeks), and the medium term impact of the pandemic on staff recruitment and training. It therefore wouldn't surprise me if many of those operators currently affected by reduced services and cancellations are able to restore a significant number of services within the next month as self isolations decrease, annual leave numbers fall and overtime volunteers rise. Indeed AFAIK, the service reductions have largely happened in a way that allows them to be undone relatively easily, i.e. trains temporarily removed without the timetables being recast which whilst producing some 'unbalanced' schedules in the short term, should enable relatively easy reinstatement in the medium term as the paths are effectively preserved.
Incidentally, my regular journeys take me on TfW, London Northwestern and Avanti West Coast. I would normally include Northern but they don't seem to be operating on the North Cheshire line right now which is making some TfW services a little cosy