Hi @Gilespie
Pretty sure I gave you the reason for this on another topic? Again, the reason is that the video background is intended as stated – as a background, and not the focus for the sizing of the element. If you were to use the Video element from the page builder, the resizing would be 100% perfect.
Now you wouldn’t be able to overlay something here by default, and it would have the controls, but you could resolve that with some customisations. That is the route you would need to take to achieve the desired outcome here.
Thanks,
– Ed