If the government intention is to protect the end users and get upto certain % as a revenue in tax then it is fine but they want a complete control and too much taxes on gambling and other entertainment then it will have a negative impact because the impact will be on end user and they may think of alternative if its involves too much complexities or too much of interference.
That's the thing, we don't exactly know if said taxes are actually being used to help those that were damaged by the pandemic. Plus, who knows, they may not even remove the said regulations even after the damages are already paid and the pandemic is over. It'd probably be a lot better if casinos were to set up their own charity fund where a set % of revenues are sent every month or so and after a set period of time, would stop giving them since they themselves are businessmen that need to improve their business as well as pay their employees.
Not to mention that, why only the gambling industry? Shouldn't they just pretty much ask for funds for every working business? It'd be hard to judge though since different businesses have different revenues, but well, not that we can be picky at this time.