I suspect that contractors in South Florida sometimes give antennas priority, as Osprey nesting season (Spring/Summer?) is near (http://neotropical.b...?p_p_spp=119196) and so backhaul can wait.
Just speculation...
. . . or a lot of your work is online from home, your connection is not 100% reliable, and LTE is kept as a backup internet provider (as per Sprint guidelines).