from looking through your mainly irrelevant link, the uk comes out as a midtable team in the european set-up
it seems to be all based on opinions - a wishy washy european qualitative style study. the sort of thing you'd probably be dead against if it promoting a socialist result.
peoples attitudes change, for example the germans may have very high standards and are more likely to express disatisfaction when in fact their rail network is far superior to ours.
I am more interested in factual quantitative studies within the uk showing real changes in costs for passengers and times of journies, over the last 40 years or so. this would give a far better picture than asking some lithuanians who travel by rail twice a year if the toilets at their local station were clean.