I suppose I can see how that would make sense but it seemed weird to me, it's not how BA Avios Boost works. Anyway it does now seem to be working. My transfers from Amex are boostable but weirdly the Avios I earned direct with Qatar by staying with ALL aren't (yet).
Annoyingly, the price seems to be terrible value at 1.8 USD/Avios. That's 53% more than the BA boost price! All boost multiples seem to be the same price.
Additionally, if you have several different avios earns/transfers (like I do), it seems that you can't pick and choose which avios earns you boost, like you can with BA boost. You can only select multiples of your total earn in the last 3 months. So that means fewer options and, in particular, a huge minimum purchase if you've a significant number of avios earnt recently.
Annoyingly, the price seems to be terrible value at 1.8 USD/Avios. That's 53% more than the BA boost price! All boost multiples seem to be the same price.
Additionally, if you have several different avios earns/transfers (like I do), it seems that you can't pick and choose which avios earns you boost, like you can with BA boost. You can only select multiples of your total earn in the last 3 months. So that means fewer options and, in particular, a huge minimum purchase if you've a significant number of avios earnt recently.