[attractive nausea]

Prior 2010 you could find her music videos in full on Youtube, i don't remember if they were on her official channel or not, but you could find those. If i remember correctly it's during 2010 that her label suddenly decided to remove all her music videos from Youtube and to upload those short versions, i'd say it's because they were afraid it would affect sales (since her CDs are sold with CD+DVD version with music videos on it) and they tried to do short versions as a way of teasing when a new single was out, but i don't see the point of uploading short versions of songs that were 10+ years old though.

Ayu (and many other asian artists) don't have Vevo or Spotify account because Japan music industry is really far behind the times, it's like they're still living in mid 00's, streaming and digital download is not as popular as it is for us, also Japan don't care much about foreigners so they might not see the point of making accounts like those aimed at an international audience.