The effectiveness of bans has always hinged on two factors:
The likelihood of being caught
The severity of punishment if caught
For example, everyone knows that the odds of being caught speeding are pretty low, but if the punishment for speeding is ten years imprisonment, then very few people will risk speeding.
Similarly, even if the odds of getting caught violating this law is only 1%, if the punishment is banning the platform and shutting down the company along with a fine equal to a year's worth of revenue, then companies will probably not want to risk it.