I'm claiming that it's not clear to me whether we can control it or not.
This is similar to having a very advanced bioengineering technology, where you could instantly change anything about your body. Would you make yourself smarter? Sure. Would you change who you are (e.g. turned off your instincts/desires)? Not so sure.
So you are claiming that by making this statement you are not assuming that it is impossible to control an AGI?