Technically they're not "home" announcers. It's a national broadcast. TSN in Canada = ESPN in the US. Gord Miller and Ray Ferraro are one of the two broadcast tandems TSN has that cover their national games. The other being Cuthbert and McGuire who did the earlier Montreal/Detroit game.
TSN is also fully aware that on Wednesday nights NHL Network has an exclusive to air TSN broadcasts now, so they know Kings fans are watching also.