Please get rid of this feature

I have a YouTube channel that I use iMovie to post videos and it works, but when I try to upload a 15 minute video, iMovie rejected it because you cant export 15 minute videos on iMovie and I cut it into 2 parts and it took almost an hour to export and ho a quarter way into uploading it, and then I needed to do something else, so I clicked out and I returned and it wasnt uploading anymore and it cancelled and they save all the videos onto camera roll, so removing these feature would make this app much better thank you.

Dkddhksnssjjejsjxjdkahshdhdhj about iMovie, v2.2.3