I am REALLY surprised that spices over even 1 year have much flavour left!! I buy in bulk (SMALL amounts, that I can hopefully use within 9-12 months) If they don't have a strong aroma, they are history!! The spice/herb flavours really do enchance a dish, and when it is lacking, then I find the dish falls flat, and it's a shame to waste money on quality food if the seasonings areen't there.
If, as you say, the flavour is truly still pungent, then I suppose you can still use them.... up to you
donnac