Nono. If you have enough Androphags, unless the quantity of giants is overwhelming, it becomes a huge issue fast.
It has to do mainly with the "poison damage on hit" mechanic, where even all the arrows that do not do damage, add poison damage to the target.
That combined with the fact that there is only 1 giant per square, and not many of them altogether, means that they will all be taking a lot of hits in each volley.
For example I'm playing a game as Fomoria right now, and I DO have an N4 in my bless, and a few dozen Androphag Archers almost stacked enough poison on one of my forces to rout it by the time I got through their blockers. It was enough to kill 2/8 of my commanders, and similar proportion of my other sacreds in the force, and I haven't been losing many men otherwise.
If the person hadn't gone AI, and I was facing a human player, I'd be in some trouble from those guys.