I've joined another FFP and this offer won't bring me back. My personal situation means that 15K on Amex to get the 241 is tricky enough within a 12 months period. 25K in around 6 months is not worth the chase. I doubt I'll make the 750 nTP level and even if I do they are useless to me.
This offer is along predicted lines and as such I'm comfortable with my decision to defect from BAC and glad I wasn't enticed by the prospect of this particular hoop to jump through.