***Thats because in dispensationalism earthly Israel and not Christ is the object and fulfillment of many if not most of the OT prophecies. They truly believe that the promises were made to national Israel, rather than to Christ as the Seed of Abraham per Pauls words in Galatians 3.***
Perzackly!!!
Now to Abraham and his Seed were the promises made. He does not say, And to seeds, as of many, but as of one, And to your Seed, who is Christ.
Oh come now....I've been to the mill numerous times to buy a bag of corn 'seed'...And you know what, there are thousands of them little things in the bag...Not just one seed...