This is a good example for why its important to work out the " stop " prior to setups in multi person caller/shooter scenarios. I ALWAYS defer to the shooter for stopping for a shot, and insist on the same. Unless the setup is falling apart, or the caller is on the shooters hip and can see EXACTLY what the shooter is looking at.
Depends on the day of the hunt and time, that bull is likely getting a pas early on.
The shot presented is doable, but difficult. The distance is close which helps, the bull is not real old so not quite as dense, which helps, but the margin for error is very small and I would only take the shot with certain types of equipment.