I'm personally okay with knowing the destination, as long as the journey is worthwhile.
M'Benga was a blank slate on TOS, so I'm enjoying the character that they've pretty much invented wholecloth for this series (I certainly find this current direction more interesting than the story with his daughter in season one).
Chapel is another big departure from the TOS portrayal, but I'm enjoying the trajectory as she, I don't know, "flirts with destiny".
Spock is full of surprises as they connect the dots between the smiling Spock of "The Cage" with the version seen on TOS proper.
Pike...well, Pike is probably the one I'm least happy about, because I thought they way they had him confront his fate on "Discovery" was perfect, and everything they've done since then has diluted it somewhat for me.
But for the most part, I'm enjoying the journey, even if I know where they're going.