You’re just proving my point that it became more about sticking to your side and cheering for your team rather than relying on the medical evidence. This sort of stuff should not have been brought into the political sphere in the first place.
Many different measures have been implemented, you can't possibly pick one of them and say that particular one has had a definite impact on a certain thing.
At least where I live, the way that Covid deaths were recorded over the winter left plenty of leeway for those dying "with Covid" to have just died of the flu (to be specific, if a patient had symptoms or evidence of a viral respiratory disease being the cause of death, then all that was needed was a "clinical picture of Covid" to make it a Covid death).