I agree that the glass cockpit can make you want to constantly oggle at the screens and yes this is a danger but the benefit from finding all your important information in one spot weighs heavy.
It took me a bit of time to stop looking inside but when the proverbial hits the fan I am glad to have such precise information available at an blink of an eye.
The Rad alt alone IMHO is safer compared to the analogue one because it's easier to read which in my current job is very important.