>The idea here is that the casino will be more diligent in not tilting the odds too much in favor of the whale
Allowing scripted entries is one of the biggest examples of this and a huge differentiator between DFS and casino games like poker. You will very rarely have an absolute poker novice playing against a skilled shark. The novice will generally know they are a novice and will enter lower stake games. The shark's time is money and they will only enter games with high enough stakes to merit playing. This is completely different for DFS when scripting is allowed. The sharks can play an almost unlimited number of games against any opponent. If it is completely automated, there is no reason why the shark can't challenge the complete novice who is only willing to bet $5.