Burning make sense if you have a certain amount of coins reserved for special tasks and you know you don't need then anymore. But these are coins that are not issued so far or at an escrow account.
To burn tokens in circulation does not change anything. Less coins - higher value, more coins - lower value, the product stays the same. You need to generate more demand. If the demand is not there an (just optical) higher price for a coin does not help.