Even if they were focal seizures it’s possible the mri and a routine eeg were normal. A 30 minute EEG sometimes shows changes in between seizures in people who have them but not always. If you catch an actual seizure during the eeg that’s almost always abnormal though. My money is still on focal seizure. It’s entirely possible his doctors could still suspect these are focal seizures and still say “no evidence of” a seizure disorder and still be technically not lying for the above reasons. I’m not sure it’s a huge scandal though, most seizures go away with medication, and a rare episode of speech arrest isn’t exactly disabling. I’d be more interested if he had cognitive issues like Feinstein or something.