I don't disagree with that last part.
But comms is also about PR, it is about considering the optics of policies, how and when to implement, how to make them palatable to bank benchers and the public, having strong lines to counteract back lash etc.
For example, making slashing the WFA as one of the first policies to be introduced was a massive PR and comms disaster.
(And for the mocking pp of course I don't think comms is Labour's only problem. But it is a big one).