Default 16x9 setting (for iPad/iPhone) on big screen please?

Some apple stuff defaults at a 4x3 setting, so when you mirror it to a big screen you have alot of wasted space with black side bars. Programs like Fulgaz have adapted their software so it will default to a 16x9 (fullscreen).

It would be nice if this were remedied before the Winter comes back to us here in the US.  Thanks 

+1 you could then use the iPad as a second screen for the Zwift mobile link buttons etc.