I was told by a Viki staff that adding an ultra-wide option to the video player would ruin the subtitles. Well, guess what?! It DOES NOT!! The competition has added such a feature, without any issues whatsoever.
Sure, not everyone is a tech expert, but the person who responded to my inquiry could have forwarded to someone who is.
Below you will discover screenshots of the ultra-wide screen option found on a competing app.