Late game tech idea

Barracks research in imp, cost 500 food 300 gold, makes pikes cost food and gold instead of food and wood.

Range research in imp, cost 500 food 300 gold, makes skirms cost food and gold instead of food and wood.

So this is for late late games where wood starts to become rare but you have trade. You can turn 60 wood into 300 food with farms, and you have lots of gold with trade.

Late late game, wood units become super expensive when wood is starting to become rare, so countering pally with spears becomes super expensive. Countering mangudai with skirms is the same.

thoughts?