It was because they cut their contract with Secteur A. Secteur A was at that time the biggest raplabel of France, they arranged for them a good team to record videoclips for Sanction. Academia's contract with Secteur A were 3 albums, but Academia wasn't respecting the contract and wanted more freedom, which both parties decide to cut the contract and Viagra being their last album with Secteur A. Academia did those Viagra clips on their own who were made by Martin Mapangu. However, the clips the did in Kinshasa with Jhymmy Mukelenge weren't bad (Somunikriye, Zabalumbu and Viagra pt 2), they were maybe even better than the clips of Sanction.
Zabalumbu from 23:03 min made in Kinsuka