Never thought it was about hospitality. Thought it was about raping angels even when I was a kid.
But Ezekiel's point of view is there, as well. As Scripture commenting on Scripture, it does not deny the unnatural-sex-sodomy part, but places it in a wider, deeper context: the sin of living only for your own satisfaction, disregarding others, "screw you," a bit of sodomy in everything you do.