LOL. That is very true but I believe they are, as many Biblical references, a metaphor. Such as the locusts and scorpions of end times. But...could horses fly? Yes, if He wanted them to!
I rarely ASSUME a Scripture is a metaphor.
I consider such a possibility in some cases.
Sometimes it’s obviously true. Rarely, relatively, I think.
That still leaves quite a number of metaphors in Scripture. I just think the literal verses far out number them.
My bias.
You could be right about the horses. But I rather think God seems to LIKE horses. He may well mean . . . horses.