No expression cache for DMN engine by default?

Hi

Just a quick one - is there any reason why the DMN engine doesn’t establish an Expression Cache?

For the BPMN/CMMN engines we see something siimilar to

            if (isExpressionCacheEnabled) {
                cmmnExpressionManager.setExpressionCache(new DefaultDeploymentCache<>(expressionCacheSize));
                cmmnExpressionManager.setExpressionTextLengthCacheLimit(expressionTextLengthCacheLimit);
            }

But nothing like that for DmnEngine?
Thanks
Chris