I don't see anywhere in your article it is something decided and applied by odds providers. Where have you seen that? In your article they say the opposite precisely, it's something made by sportsbooks. Moreover the customer of the casino, is not the customer of the odds provider, so there is no reason for them to make things like that on their own. It's not their business. How casinos would keep high rollers and manage their streamers or their sponsored ambassadors, if odds providers were doing this kind of thing on their own? I think it's just an excuse from the customer support to avoid complaints from players and getting a bad reputation too quickly.
Max bet limitation is really applied by the odds provider, not by the bookie. However, the mentioned article doesn't contain this information. I suggested him to read the article so that he can learn why his max bet limit has been reduced. Casino treat their sponsored ambassadors especially. They also treat the high roller especially. The sports betting manager of a bookie (or admin) can increase the max bet limit for a user by communicating with the odds provider. Live support can't do anything there.
Providing the odds isn't the only responsibility of a betting odds provider. Your account will be limited by odds provider if you continuously place bets on low risk. Your account will be blocked by the sportsbook if you always place bets on fixed matches, the sportsbook gets the information about this from the odds provider. Read the replies of Stunna in
this thread to make it clear.
Sorry but by bets with low risk,you mean low odds? I read Stunna replies on the other thread but I do not belong to any match fixing candidate. I am just sometimes following some Tipsters bets. I can provide you my bet list during last month but the list is big. I have to do some changes to make it readable.