Simple. As you may know, the mythology behind the kirin is diverse. Each of the ancient East Asian countries believed in a different interpretation of them. But each of them had something n common: they were all chimeric ungulate creatures, namely deer or horse, with draconic characteristics. They were regarded as high stemmed creatures, but others go beyond to outright divine
I call them as such due to the latter, but also as a reference to the divine dragons from Fire Emblem. Who are recurring benevolent (though there have been examples of antagonistic recently) species.
yeah, I know the kirins in FIM displayed characteristic of other ungulates. But let’s be clear, they mainly look like ponies