Of course, it is not scam. This can be categorized to unfair, dishonest etc... but not a scam.
I think it is. Lets say I promise you payment for work, e.g. posting here and once you have delivered the work I just pay you less. Most would consider this a scam. A faucet is no different in that regard, the work is just very simply and quickly done. Mostly its loading ads while you solve a captcha to make sure you are present. The question is whether they actually said they would pay X or if they advertise to pay "up to X" and OP was lured into believing that X is given to everyone and not only a certain percentage of lucky visitors.
It was not upto. You can try at the faucet and see you get a message like "X satoshis have been sent to your wallet" but in your wallet you will only receive 1 satoshi.
Another such faucet I found :
WINBITCOIN.space
Message: "1000 satoshi was sent to you on FaucetBOX.com."
But in my wallet I recieved 1 satoshi.