I call bs on this
It’s entirely possible for a huge solar EMP event to knock us back to the perverbial stone age. The “newer” the electrical components, the more fragile they are...circuit boards and such and everything contains them now. Unless “hardened,” such as the military does to protect against EMP pulses.
But since the solar ejection must be pointed at just the right trajectory to intercept the earth, the likelihood is low. But still far greater than getting smacked by a killer asteroid.
I wouldn't write it off.
Solar activity caused problems in Montreal many years ago.
Could make for a nice aurora though, if it's not cloudy out.