The extent of a street is not well-defined in HK. Connector roads still get gazetted and signposted as that street (using street-name signs), including interchanges and slip roads. So yours still result in an inconsistency with the westbound from the diverge of Shun Long Rd to Shun Fai Rd. 
I'm not discussing Sun Fai Rd. Symmetry is not a must. It doesn't necessarily correspond to reality. What we are discussing is the sections of CLK Rd only entering or exiting a `=motorway` , thus it should be reflected as a `=motorway` or `=motorway_link` . It acts an extended slip road. See Hung Tin Rd only connecting Yuen Long Hwy. 