Sorry, this is tangentially related.
I don't get it. To avoid disfellowshipping for a blood transfusion, what the "sinner" has to do is repent and show that he/she was under pressure. You would think that if God is willing to allow someone to die, is because the sin is very serious, and therefore requires a harsh and long punishment. But no, all you have to do is repent and show that you accepted blood transfusion under pressure. On the other hand, if you have sex out of marriage (nobody dies... usually), repentance is not enough, a long and humiliating process is expected.
If someone willingly takes blood, perhaps because
of being under extreme pressure, the committee
should obtain the facts and determine
the individual's attitude. If he is repentant, the
committee would provide spiritual assistance in
the spirit of Galatians 6:1 and Jude 22, 23. Since
he is spiritually weak, he would not qualify for
special privileges for a period of time, and it may
be necessary to remove certain basic privileges. (p. 111 Shepherd the Flock of God)
Punishment for very serious offense (blood transfusion):
nothing if you play the game well.
Punishment for most other offenses (deemed not as severe):
long humiliating process