The tower definitely would not be 1170 total without the spires, if the original height was 1240 and you subtracted 54 feet (27 feet per floor that would leave 1186)
I think it's more logical that the roof is at 1170 but there is either no spire or they've been shortened, or the final height is 1270.
Otherwise this whole redevelopment is even stupider than it was before...
Shame on the USA for letting the terrorists win