Such a statement could not be made a thousand years ago as it would be utterly anachronistic. The concept of "homosexual individuals" only exists as part of the modern concept of sexual orientation. A thousand years ago people thought in terms of acts, not orientation.

I think it unlikely that they would have regarded treating anyone with compassion as heretical. Most of the early condemnation of homosexuality was specifically of pederasty which was accepted in pre-Christian times https://en.wikipedia.org/wiki/History_of_the_Catholic_Church... They might have disagreed strongly, but it would definitely not be heresy. Many historians believe homosexuality was tolerated: https://en.wikipedia.org/wiki/History_of_Christianity_and_ho...