Lakers should absolutely be fined. Not for tanking (they won, amazingly) but for the mockery they provided. Suiting up 8 players with 2 injured in the first place is an instant warning bell. Do they have space on their roster? If so, they could have signed Harris to the minimum or another player to veteran's minimum, whatever. For them, a $1.5 million contract would turn into $2.1 million plus with the luxury tax (not sure how far they're over). Fine them the difference between the contract and the luxury payment.
OK, I'm only half serious with this post. I only went along further because it's the Lakers