Lazy? No... it's only lazy if you bet the Over in
every one of those games you cited, not to mention, a losing proposition.
Take the Suns for instance... they have played UNDER the total in EVERY ONE OF THEIR LAST EIGHT GAMES. That's right, if you were blindly betting Suns Overs, you'd be in an 0-8 slump right now... and that includes games against reputable "over" teams like the Kings, Blazers, Warriors, Wizards, and Clippers.
So you see, just betting the Over in games with high scoring teams guarantees you nothing... because the total is set high, often to an inflated degree, to offset the public's penchant for betting Overs.
Just as with any betting angle, you have to pick your spots... and I'm picking mine tonight.
Good luck!