Yup, there is still some tourism remaining to kill, so why not
And plenty of poor countries with Sub-Saharan developmental indicators like Pakistan, Cambodia, and Nepal don't have elevated B1/2 visa overstay rates compared to other countries, so if some countries with similar developmental indicators are seeing elevated abuse of the B1/2 program, then it should be cracked down on.
[0] - https://en.m.wikipedia.org/wiki/Tourism_in_the_United_States