User blog comment:Fistful of Force/AvS Pt 1: Annie Support Burst Potential/@comment-3308937-20131124220409/@comment-3308937-20131124235011

That's not considering exhaust from Soraka or barrier(215 health)/cleanse from Vayne, nor is it considering Soraka's ult (150-200 depending on passive).

Annie doesn't have range, Soraka should easily be able to silence her before she can even cast her combo or, at the very least, get exhaust off or prevent anything other than her ult from going out.

The issue with your post and your theorycrafting is you just assume that the ADC and support are going to sit there and let Annie walk up to them and combo them.

The enemy carry has to fight through the extra 80 armor that Soraka's carry is going to have, and the silence, if Annie gets the jump on her carry.

After the stun ends it's just a matter of condemn/net/shift/valkyrie/etc. or flashing for a successful disengage, since all the focus is on the carry. Also, there's the whole exhaust vs ignite in teamfights/ganks to consider, since if Annie isn't packing ignite she automatically loses a 2v2 trade.