What language did God use to describe the crucifixion? What language did He use to describe the vehicle Ezekiel saw? What language did He use to describe Satan in the garden? The Bible is full of Him painting pictures with words for us and that opens up context and meaning.
He used the language of crucifixion, pierced hands and feet. He didnt use the language of stoning (current form of execution) to describe the crucifixion (an unknown form of punishment at the time of the prophecy).
What language did He use to describe the vehicle Ezekiel saw?
What Ezekiel saw was not some far future prophecy. It was a contemporary event. Ezekiel did not see some future super-duper weapon system.
Its obvious you are missing the point wrt prophecy. You are getting side-tracked by your own predicament. Nowhere in the Bible did God use accommodating language to describe some far future event. To apply such a notion in the case of Zechariahs horses in scripturally unsound.