this is more rational than burning when the coin is not developing, although burning is considered important for the development of coins in the future, the coin burning process is based on a study or analysis of the pre-sale circulation, usually they do it when the ICO has been completed and delete unsold coins, or as you say using the burning process every three months after going through the existing mechanism.
Regardless of that and what you said, each team will also see how the interest in their coins is every year, because if the demand continues to grow, then the coin burning will also not be carried out immediately even though it has been set in the plan in order to maintain the basic value of their coins.