I have pretty much always seen the iPad as a content consumption device rather than something to create content on but I have found myself having to reassess due to applications such as Filmic Pro and Lumafusion. Processing Video is a very intensive task which my main computers struggle with yet Lumafusion handles 3 Video tracks and 3 audio tracks with ease and this at 4K. You can put things together and try it out and if you don’t like the result change till you do before finally compiling to a movie file in any resolution you want.
Not everything is perfect some formats still need to be converted to get useable files so you can’t junk your computer just yet but the iPad is a useful tool for creative work and I never thought I would say that.