@SA, no problem; It is still stabilised because even though the engines might spool up; your groundspeed won't significantly change, and when meeting the runway it is actually the groundspeed that is important - as long as the wings are still safely flying, which they will be, because they will be between VLS and VFE.
So, although it might sound and seem as if the aircraft is suddenly going to accelerate forwards, it actually isn't; it will actually "stay where it was" on the path and ground speed that it was on before the gust.
The increase in IAS will not destabilise the aircraft path, (as it would in conventional constant-IAS types), because the FBW automatically corrects the trim for the IAS change AND nulls-out the pitch-power couple.
The engines will remain spooled-up, which is also a stability requirement, as you know, and the effect of GS Mini is reduced approaching the flare anyway.