A0Nasser - yes, they do indeed think that game design is easy.
It took me close to a year of continuous work (by myself, and creating all of my own assets) to complete the game.
I also had to do all of the marketing for months, before I even stood a chance of reaching on Steam.
At least it was one unforgettable learning experience - and it gave me respect for the WORK that is involved in creating a game.
But if they think that game design is easy - they are more than welcome to try - lol