Right now the [sefirat-ha-omer](https://judaism.stackexchange.com/questions/tagged/sefirat-ha-omer "show questions tagged 'sefirat-ha-omer'") tag is used for both the mitzva deorayta of counting the Omer, as well as the unrelated period of mourning that happens to coincide with these days. The two are (at least on a peshat level) completely unrelated. Perhaps they should be differentiated?