As a golfer last winter was the worse I’ve know for closed courses anywhere there is a clay base . I would say the turf might be fine but whatever the base is it’s holding too much water even in a dry autumn winter . Mind you Arsenals pitch whilst fairly flat was looking ropey by Prem standards . Manchester gets tons of rain compared to here but their two pitches seem ok .
Lastly every head green keeper seems to have their own theories and ideas!! Most use a lot of chemicals - and apply them on windy days LOL
Maybe the rumours of this pitch genuinely struggling to drain and get sunlight are true