Yea and that's all fine and dandy, and believe it or not I agree with you.
HOWEVER, these are Elusives (1 time only playable contracts) so "Freedom of approach" should be more important here now more than ever.
I see what your saying though and I have no problems with having restrictions in contacts mode, Escolations and even the actual story missions.
But one time only contracts...?? During Elusives??
Hell freaking no!!