Oh thats a little gem I didn’t know that the abort concept was been when the Spaniards came, guess the research book I used was on the spanish era already.
I used all the Philippines Mythology as my thesis on my college painting course and have to paint a door size canvas with all the supernatural entities listening to an old man telling stories to his grand kids.
I wouldn’t be surprised - the Spanish first colonised the area in the 16th Century and created a brand new country, naming it after their king at the time, King Phillip the Second of Spain.
The Church missionaries were normally the only historians around (biased as they were), so it’s not unexpected that they start inserting their beliefs into local mythology then recording it as ‘it’s always been this way’.
I heard one time in our local channel that the Manananggal and Witches was supposed bastardized ver of the local tribes woman shamans who have strong connection with their people and when the Spaniards realized they can’t full control the people without removing them in power so they made up that shit to have the shaman loose favor to the people.