Disclaimer - not having read the whole thread. First impression - Toronto Blessing - as Church History?
It's something I have some experience with and knowledge about.
I'm not interested in judging the movement or particular persons in it. What I will say is that such trends in various manifestations are common in newer and especially charismatic-leaning groups.
I am sure that in each of these movements and groups, there are sincere and well-meaning and God-loving people at the core, doing the best according to their understanding and conscience at the start. And God can and does work with people in such situations. So I am not surprised to see people experience healing and for there to be conversions. Glory to God!
I also see, almost without fail (actually I can't offhand think of a single exception, but there may be) ... a decline as more folks get involved and there are no real doctrinal "fences" to keep the flock safe.
Odd manifestations happen. They may be caused by any number of things, but the human person is easily influenced by emotion and that often plays a part, with or without Holy or unholy spiritual influence. Also the emotional and pleasurable aspects can lead to a sort of "addiction" to such things, or seeking them for their own sake, even in a person who is telling themselves not to fall into that.
Also I see schisms happen. Believers fall apart from one another. It may be necessary to separate due to real problematic practices and beliefs, but it may also be a strong temptation to pride or strongly feed pride, which can be spiritually deadly. It's a very bad situation for many, and it essentially always happens. Where is the healing of this, and the care for souls in the process? No one is taking care of it.
And I also sadly see serious moral failures result in some, scandalizing the flock. Again, this may be for a number of reasons. Maybe having fame and opportunity and wealth drag some people into too much temptation. Maybe the enemy does target them because they are both easier at that point and have the potential to damage many others. I don't know. But again, such movements tend to lack the foundation of Christianity through the ages that might have protected them, as well as oversight.
God will use whatever He can, because people can be benefited spiritually and healed physically, and even brought to salvation. God is love.
But there are problems within such movements, and the enemy will use those as well, to as great a degree as he finds us willing to allow him, and people can be destroyed in the process as well.
Overall I think a lack of protection and knowledge is the reason such movements can tip a bit more to the negative outcome than we would like to see.
But I do believe they are sincere at the core. Only lacking in knowledge, maybe because they often think they are discovering something "new" and so think there is no knowledge to be had.
Forgive me if I offend anyone. For what it's worth, these are my observations from decades of involvement and observation of others who I know/knew very well spirituallywho have been involved.