Neither Kasper nor Marx are in tight spots. Francis presented Kasper to the Extra-Ordinary Consistory thus: ""Yesterday, before falling asleep, though not to fall asleep, I read, or re-read, Cardinal Kasper’s remarks. I would like to thank him, because I found a deep theology, and serene thoughts in theology. It is nice to read serene theology. It did me well and I had an idea, and excuse me if I embarrass Your Eminence, but the idea is: this is called doing theology while kneeling. Thank you. Thank you.”
Francis then allowed Kasper to preach his same heresy at the "Extraordinary Synod".
Lastly, Cardinal Marx is still a member in good standing in the Pope exclusive Gang o' Nine.
So please don't tell me the above apostates are in tight spots, until Francis grows a spine and threatens to excommunicate them.
Oremus.