lighten up a bit, they are improvisations… nobody is pressing these to vinyl they’re here to demonstrate that the AR/AK complement each other well and can be used by musicians with different styles.
Whether you think it’s “good” or “bad” is another discussion. But for two instruments that have barely seen the light of day, be a bit more patient and there will surely be someone out there sharing some music that fit your conventions of “good” 
Personally, from about 3:45 onwards it gets really groovy and I think it sounds great (second video)