Well, I am pretty sure they would not have made such a statement 1000 years or even 100 years ago

"The Catechism of the Catholic Church emphasizes that all homosexual individuals must "be accepted and treated with respect, compassion, and sensitivity," and that all forms of unjust discrimination should be discouraged and avoided at all cost"

https://en.wikipedia.org/wiki/Catholic_Church_and_homosexual...

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...