No harm to yee BYCTWD, but you don't understand leases and property law.
Longfordian's response is spot on. If anything he's being generous on the time left on a lease for it to be considered 'good title' - 70yrs is usually good title for residential property, with commercial time-scales being shorter (a lot of commercial stuff is only built with a c. 30yr life-span in mind anyway, for example).
How much good title is left in Shels' lease would therefore be influenced by what the land is zoned for, but bottom line is that so long as the majority of the lease remains to be fulfilled the club's lease on the land has way more value than the council's freehold on it.