I can't get too worked up about worrying about the training ground as I think we'll get it without much of a problem. The possiblity of a local golf course - now that does excite me.
Don't get too excited the operators make their money from the dumping of spoil. That is their trade. They buy up farmland and then dump spoil on it. The locals were rightly very concerned about this plan because of the possibility of introducing contaminated spoil and because this would close off access to the land. One the dumping is finished the uneconomic golf course may become a liability (arguable). And it is still private property without public access. The land owners have already blocked the "right of way" by bullldozing the trees.
My analysis says the golf course gets in the way. It uses too much land which could be used for more football pitches (ideal world). There is a legacy of dissatisfaction and conflict of opinions of what the land could be used for. But it is private property, controlled for the most part by the land owners, subject to what they can get away with the planners.