The decision of Acts 15 was that gentile Christians should not be forced to keep the Law of Moses.
The Law already contained rules on the minimum that was required of foreigners who were resident in Israel. These restrictions can be summarised as idolatry, fornication and blood. - Lev. 17-18
A non-Jew would customarily carry small idols with them on travels. This was not acceptable while resident in Israel. A non-Jew might marry close relatives or otherwise behave in a way that was offensive to their hosts. The Law prohibited such conduct. A non-Jew might kill an animal and eat it unbled. They had to be told that this was not permitted in Israel.
However - even non-priestly Jews were permitted to eat an unbled animal found already dead. The only downside was that they were then considered unclean until they performed cleansing rituals. Moses encouraged them to sell such an animal to a foreigner rather than eat it so as to avoid temporary uncleanness.
So it was decided by the meeting at Jerusalem that no more than these simple restrictions should be imposed on gentiles who were becoming Christians so as make fellowship possible between Jewish and non-Jewish Christians.
Eating the blood of animals found already dead was never encouraged. It always resulted in uncleanness. It was prohibited for priests. But it was never a sin. It never resulted in punishment unless cleansing rituals were neglected. But exactly the same applied to a Jew who decided not to eat the animal but bury it instead.
Blood is only scared in the bible to the extent that it represents a life that has been taken. Every reference to blood in the Old and New testaments can be understood in this context.
When the Watchtower insists that a child's life should be sacrificed because blood is intrinsically sacred in every context it has an extraordinary burden of proof. It has failed totally to meet this burden resulting in guilt in the premature death of untold thousands. All because of a dangerous combination of stupidity and arrogance on the part of generations of ignorant leaders.