It's a shame this article isn't a little more specific about which forts in particular Dr Allison is referring to. The discovery of "womens" artifacts and the bodies of children is not new - it dates from Dr Barry Cunliffe's excavations at Portchester in the 1960's (Cunliffe 1975). I do not know that these finds have been repeated at any other site.

What is perhaps more significant is what was NOT found at Portchester - no evidence of barrack blocks, granaries or headquarters buildings. Francis Pryor has recently suggested that the Saxon Shore forts were not originally built as defensive structures, but were intended as secure storage depots for British produce being exported to mainland Europe (Pryor 2004)

I think we also need to bear in mind the changes that took place in the Roman Army over the course of 400 years, and not assume that anything written about the campaigning legions of the 1st and 2nd century is in any way relevant to the garrison forces of the post-Diocletian period.

References
Cunliffe B. Excavations at Portchester Castle. I: Roman. (Society of Antiquaries Research Report NO 32, London, 1975)

Pryor F. Britain AD. (HarperCollins Publishers, London, 2004)