Looking over the field formations posted to the fortified zoe I'd agree. The infantry divsions there seem to be average R & A types with a few of the third wave B divsions. Those were all configured for defensive fighting, with any attacking to be in the form of methodical carefully planned counter strikes with heavy artilery support.

The other type of unit posted to the fortress zone were the fortification regiments. These were a elite organization, but their sole offensive role was to provide fire support. Defending against the German attacks they did well and were amoung the last French soldiers to surrender.

The force for large scale counter strikes were the armored, and motorized infantry, divsions posted further west. These constituted the formations trained for attacking and which were suitable for a large scale counter strike.

Historically this powerfull mechanized force of over a dozen divisions was misdeployed and scattered due to the French leaders misreading the German attack. Its corps and individual divsions were defeated piecemeal. Had the Germans been foolish enough to attack the fortified zone directly the French leaders probablly would have concentrated their mechanized corps correctly.