Depends on him actually.
How much is he charging the promoters for that race?
I know that Bahrain and Abu Dhabi, for example, gets charged $40+ mil annually to host the race. Now they're left with no option but to hike up the tickets prices and that leads to less growth if not a decline in the sports popularity in the region, which is new to the region to begin with
The whole business model of F1 needs to get revamped, it's no longer the case that rich countries will pay anything to get F1 at any cost, even rich Gulf countries are tightening their belts with subsidies from Gas, food, electricity, housing..etc are being cutdown. So sooner than later, if not already begun, people will start asking their governments if those funds worth it or not
To give a specific example about Bahrain, they've just lifted this month the meat subsidy and saved the Govt $100 mil per year.. now.. meat vs F1? People are pissed, and I assume that's the case or will be the case in so many other countries too
Bernie & Co. should think of a better way to raise the popularity of the sport so that people would come to races and that will lead to more fans, more merchandise sales, more money to F1 teams and F1 as a whole
So instead of Bernie asking promoters to "copy" Mexico, he should help new places and other promoters to effectively do their job. The loss of Korea, India, Jerez which were all new circuits will make any new country/promoter think twice before considering having F1