I think client-side-rendering and jslink should co-exist because not all CSR is JS Link. Possibly we could make csr a synonym of client-side-rendering, but not specific frameworks. There are other framework which could accomplish CSR, and I like the possibility to specify framework as a tag.
The synonym have been created: http://sharepoint.stackexchange.com/questions/tagged/client-side-rendering?sort=votes&pageSize=50https://sharepoint.stackexchange.com/questions/tagged/client-side-rendering?sort=votes&pageSize=50