Its hard to tell if someone is joking without smileys. But since nobody else commented..
Im no expert either. Far from it. But you DO realize there is a difference in exporting a movie clip vs creating a 3D render right?
With your "GoPro" you already have all the pictures needed for the movie, right? That it takes a couple of minutes for your movie editing software to export it is because it never creates the pictures in the first place. The camera does, right?
With Blender (or other 3D rendering softwares) you render (create) each frame in that movie from scratch. And for each second of movie you need multiple pictures usually at least like 30 (fps). For a 30 minute clip, thats 54000 pictures that needs to be rendered. If it takes 30 seconds to render each picture your looking at 19 days..
And thats AFTER you setup everything in Blender, like create the scenes, making everything move and work and look good.
Im not defending Wildeer but I hate when people draw quick conclusions over shit they know nothing about and then post it as truth on forums instead of looking it up.
No offence, just saying.