Of course not that's just your and ThomasBlaine headcanon, when they are equipped nothing happen at all.
It's literally what it says in the item description. No headcanon involved.
Flemeth never possessed her daughters which are supposed to be 4 in total(at least for now)
not sure what kind of proof those rags called robe of possession constitutes,they are just an item and if FLemeth wanted she could have possessed Morrigan in DAI but she didn't which mean that she has no interest to do that.
How do you know she never possessed her daughters? And her not possessing Morrigan on the spot in Inquisition doesn't mean that she has no interest in it, it just means that it's not in her interest to do it right then, or that it's something she needs special circumstances to do, such as for example, again, exactly what the Robes of Possession proscribe in the item description.
He presented more reasonable arguments for Flemeth than you did with Morrigan...
I think you and Illegitimus are a bit biased toward Morrigan
It seems more like you guys are so wrapped up in your little "Flemeth is actually a saint and Morrigan is just out to spoil her fun" conspiracy theory to listen to even basic common sense, much less proof, which you demand freely and then ignore while flinging around baseless or downright illogical suppositions yourselves, shamelessly presenting them as facts.
Plus Flemeth said in DAI that "a soul cannot be force upon the unwilling"
Makes sense. Hence the Willpower drain.