I am sorry that you have been misinformed about this pension. The consul should have put the matter thus: the surviving spouse (widow) of a German pensioner may receive survivor's benefits. Survivor's benefits include orphan's benefits and widow's benefits. So the widow's benefits is a species of survivor's benefit, not something different. What is different is that if the deceased was a war participant (in various positions, like military, detained etc.) the amount of the survivor's (including widow's) pension is different (higher).
I believe the form you have filled in is here: http://www.servicecanada.gc.ca/eforms/forms/dc2-svr-e.pdf If you would look, in part J it dedicates place for the military activities of the deceased, so that the pension amount can be calculated taking into account these periods, which are equivalent to employment periods under German law.
What the consul might have meant (though I doubt it) are the other war veteran's and war victim's benefits (kriegsfursorge). These benefits also apply to survivors (widows and orphans, as well as other family members) but they are non-financial benefits specific to Germany. They include old-age help, housing help, fuel allowance for the Winter and other such benefits, and they are supposed to be a little extra practical help on top of the main survivor's pension, discussed above.
I hope this makes the situation clear. From a practical perspective, if you believe the pension is too small, you could contact Service Canada (http://www.servicecanada.gc.ca/) and ask whether the war time of your late husband was taken into account in the calculation of the benefit (i.e. for a recalculation).
Finally, please consider rating my answer as it is the only way I can receive the benefit of my work.
Dr Ioan-Luca Vlad