You simply do not fly a low visibility approach with expected go-around and talk to ATC at the same time.
Really? You also don't start approach in such conditions - yet they did.
It's not just me saying CPT was PF. And if you read CVR you'll know why he was speaking (up to a point) - because he spoke Russian better than the navigator, and because he took over the communications from F/O who was asked to speak on 123.45.