for me its a yes! the main goal of human is happiness whatever human wanted to reach it towards to his/her happiness.
For example why do people want to work? because they want a better life, and if they reach better life they also reach their happiness.
So for you what is the main goal of human?
For me It is because If your not happy there is no living.. Better live a life for happiness than searching happiness in things
And its actually a good goal with a lot of reason to motivate you to achieve it. Of course everyone wants to be happy though there are different things that can make us happy. Some are happy with material things, some power, some are happy simply by being woth their loved ones.