is Francis speaking heresy, or is he speaking according to SH?
Both.
Ha! True!
I am merely bringing up the point you brought to light a long time ago about Suprema Haec.
I find it a little ridiculous that the same people who support and believe SH has the weight of a dogmatic constitution and use it to "prove" that feeneyism is heretical, also claim the pope speaks heresy when he speaks according to the teaching of SH - but then there is nothing but crickets when they are asked per SH, what exactly is heretical about what the pope says.
If the pope is heretical with what he said, then so is SH - I think that at least some of the SHers can accept this, but this becomes unacceptable because it means something quite favorable for Fr. Feeney and helps demonstrate the heresy he was courageously battling. Since they cannot have it both ways, they are like a deer in the headlights, hence the crickets.