Bridge doesn't mark illustrator file with an embeded profile correctly…
Not many on this forum are familiar with Illustrator, maybe also try the Illustrator Forum for a possible solution. Bridge is still not capable of showing al files the dedicated Adobe applications can produce or read.
It is merely a design flaw then a bug, also try a feature request for this, the more people asking for the better change it eventually will get realized.
And do the vector files show a false profile or none at all? you can also sort on 'untagged' using the filter panel.