Burn reduces circulating supply. Everything is dependent on the forces of demand and supply. A reduction in supply drives prices. This is commonsensical

Supply Burn doesn't mean the price will go up
Burning supply doesn't drive prices.
Demand drive the prices.
If there is high demand even if there is no supply burn the price will go up.

But if there is no demand, Burning supply won't help the price move.

This doesn't apply to $OM it applies to every token burn supply but have no market demand.