Blessings are done all the time by priests, blessing people, soldiers and police for instance, pets, sacramentals, cars, firearms, homes, etc, etc you name it.
These don’t rise to the level of some kind of solemnity.
I suspect that in regards to all this. Blessings may be given if people present as a couple, but as with all blessings it’s always something bestowed on the individual person or thing.
That’s why I’m not concerned as many others seem to be. I had my same action 44 magnum and 30/30 rifles blessed but I don’t consider them man and wife.
If this causes a rush of homosexuals or even militant activist homosexuals to come and get blessed in The of The Father, Son and Holy Spirit, the jokes on them. Because blessings are also an exorcism and it may reduce the nasty demonic load on them enough to receive the grace of conversion.
I think it will cause many to start manifesting, seen it many times before.