Upon a little research, the following was revealed:
2004: 5 hosts (9 teams in)
2005: 4 hosts (9 teams in)
2006: 5 hosts (8 teams in)
2007: 4 hosts (5 teams in)
2008: 2 hosts (9 teams in)
2009: 3 hosts (8 teams in)
2010: 4 hosts (8 teams in)
2011: 3 hosts (7 teams in)
So, there is actually a precedence of the SEC getting 5 hosts, albeit most recently 6 seasons ago.
2004: 5 hosts (9 teams in)
2005: 4 hosts (9 teams in)
2006: 5 hosts (8 teams in)
2007: 4 hosts (5 teams in)
2008: 2 hosts (9 teams in)
2009: 3 hosts (8 teams in)
2010: 4 hosts (8 teams in)
2011: 3 hosts (7 teams in)
So, there is actually a precedence of the SEC getting 5 hosts, albeit most recently 6 seasons ago.