Maybe those protection towards addiction is just an excuse, but provably the main intention of those things happen is to get some revenue to online casinos that will comply to the rules they set.
But again for sure, there some ways to continue to participate on this activities and provably some old time gamblers would use some tool to access those online casino and get back to their usual activities.
That will needs work hard and smart from the government to search for the rest of illegal casinos and close or ban it. But what they must cares is their citizens because that numbers of gambling addiction can increase anytime. They must use different approaches to closest to their citizens and explain all things in details. If their citizens realize the danger of playing gambling, they will start to reduce their gambling activity or even they will stop gambling because they don't get the benefits of gambling.