Such a round will actually be more vulnerable to certain hard kill active protection systems than more conventional artillery (HE and DPICM) because the submunition is less robust.I am not sure that ADS are going to be able to defeat modern artillery ammunition like SMArt in the near future.
Such an attack is of a different quality than an ATGM attack.
I strongly disagree. There is a perception that the XM1200 manned ground vehicles will be light in armour? Nothing could be further from the truth. By significantly decreasing the armoured area (by reducing internal volume) and using new materials the XM1200s will have very high levels of passive protection (ie armour) while achieving low gross vehicle weight (<30 tonnes). An analogy from history is the Panzerjager Hetzer. It weighed only 16 tonnes yet had very high levels of protection (both passive and stealth).As for overconfidence in ADS. IMHO this is what the US is currently doing in regards to the Future Combat System.
Then of course there is the capability of active protection and the XM1200's Quick Kill system. Which will be able to defeat just about everything thrown at it from point blank artillery to 120mm APFSDS to airburst artillery rounds and in large numbers.