With too low a barrier to recount-by-hand, every election becomes contested because the cost to demand a recount is minimal and the losing candidate might win.
Frankly the cost of elections doesn't seem to be a serious problem for any government. They're choosing to fix some roads instead of boosting the quality of elections. Frankly I'll take the election over potholes or whatever else the government is spending money on, because if I can't trust the election, I can't trust the government.