Nah.  As I can think a lot of people’s missing the basic things regarding difficulty, difficulty re-adjust every 2016 blocks and not in x weeks, the network params just want 2016 blocks every 2 weeks  if those blocks took more than 2 weeks difficult goes up if took less than 2 weeks difficulty goes down.
That means if the governments like I read above a scenario tha stop meaning forever or put out countries of big mining farms the difficult re-adjusting can take in a worse scenario months as not weeks. All those are scenarios, even if it happens developers can solve it, you should not worry. Also make your thoughts the affect of such of scenarios can be, no newly coins mint, no transactions confirmations, a frozen blockchain. But don’t worry.