Don't be ridiculous. I only mention other police forces because these officers had weapons available to them and they chose not to use them. This was obviously correct so they did well in the circumstances, especially as they had to protect themselves and others from their own weapons being taken.
I initially saw their use of force as excessive and disproportionate but that was because there was no context. We now have the context and the police clearly had to use force to deal with a very difficult and violent situation.
There will be questions but if there's doubt and you can only say that in hindsight then there's no case for them to answer because they're human and they did the best they could.