Because they got invited to BCS conferences? The Boise St football violations are extremely minor here, letting recruits sleep on players couches and not pay for it, the total benefits they were given were worth less than $5000 and spread between 60 some players. This was not an OSU like level of benefits.
The lack of institutional control charge is due to their women's tennis program which went completely rogue and was using a player who was no longer attending Boise St. That is a major violation, the football stuff is not the tip of iceberg.