Prof. Dr Thomas Stark
Phil.-Theol. Hochschule Benedikt XVI, Heiligenkreuz ?
I don’t think so. I think those two are the signatories to the statement.
It appears you are correct. From Gloria TV:
“The teacher in question is the philosopher Thomas Stark.”
https://gloria.tv/article/CYxnTEk2ukYP1Ebbi3YBH2pue