Nope I disagree with this, the amount of time doesn't really affect it, for me it is the amount that counts.
You could spend less time but play with a higher amount, or you could spend more hours but spend less if you just want to enjoy.
It sounds like a superstition, for me it isn't really the amount of time but the amount of money that you spend which could lead or be the reason why they would call you a gambling addict.
The amount of time spent gambling does have an effect. That doesn’t mean the amount of money used in playing doesn’t count. Both the time spent in playing and the money spent are both important to look out for whenever you’re playing.
When you’ve spent more time playing than already planned, there is a high probability that you’ll also spend more money than you bargained for.