I don't think the things you stated is a flaw of online gambling. I believe those are the strength of online gambling reason why online gambling business is booming. Being accessed easily anytime and anywhere is an advantage to attract players. Aside from that due to different timezone, the 24/7 operation of online gambling gives them opportunity to cater and service anyone from the globe.
You're right, but that's not what I meant. Online gambling is available around the clock. That's why players spend a lot of time at online casinos. They don't need to go to a special place and gamble there. Players get used to playing at the casino and because of that they can't rest any other way.
Online games have only existed for about 30 years, and this is a very small interval of time in the history of mankind. I would rather separate the history of the development of gambling from the history of games based on the technological and communication achievements of mankind. All the same, online gambling is a slightly different form of the game. And it often comes in human-computer form rather than human-human form. It is this last form that, in my opinion, is the development of gambling, and not online technological entertainment.
But all these are controversial issues, what do you think - is it worth dividing the history of gambling like that?