This sounds like your Wiimote was broken or you just didn't understand how the controls had to be executed. Laser Hockey in particular offers plenty of options, because there are many different ways to hit the ball with your paddle. The Shooting Range has a combo system, so there's quite some room to improve your score.
Now finding the game boring I can understand, but calling it barely playable seems to be a problem of the player, not the game.
Not at all. We got Wii Play along with the Wii Sports Wii bundle at the same time, and Wii Sports worked like a charm. The whole family played it at the time and I can categorically say that whilst everyone grasped the controls in all of the games in Wii Sports with ease (and had fun), everyone found the games I complained about in Wii Play all but unplayable control-wise. If it's a problem we all experienced, and attributable to one game but not the other, then I stand by the fault lying at the door of the game not the player(s).
If the suggestion is those games take a while to learn how to control then I accept that's a possibility, since I didn't return to any of them except for Tanks, but there's still a problem with the game there because: 1) said game was marketed at the expanded audience, so should have been accessible at the very least, 2) none of us had any desire to return to any of the games besides Tanks; my critcism is not limited to controls, poor controls were just a part of the unenjoyable experience.