too dumb to build good bows
Bows need strength
Dexterity to aim, strength to pull back for more arrow velocity...
I feel condescending just having to explain this.
...
Look at those fucking brows. If their eyesight is good enough, they could be the best long-range archers in harsh sunlight. If not, though, holy fuck they couldn't hit anything.
If they do manage to hit the broad side of the proverbial barn, though, the arrow is going through at least one wall.
balancing
The English actually won because the French knights had to wade through a ton of mud and were tired as fuck by the time they got there.
Lets also not forget that the English took in a lot of prisoners that day. So much prisoners that they put some to the sword out of fear they would fight back.
Archery requires far more than raw, brute strength. Good archers need to be well disciplined and regularly trained to be effective in battle. Orcs generally lack these traits and usually aren't presented as archers. Even LOTR's orcs aren't good at archery; they just have sheer numbers.
Skirmish archery is not the same as firing a volley to ruin the day of a black of infantry
Not really the point I'm making senpai.