Couldn't find any data at the time. Tried to get them to submit experience reports on erowid so that there would be some data out there, but they didn't want to put anything about it in writing.
In neither case was it a big deal in the long run (not exactly great vibes in the short term though). I used to be a pretty enthusiastic user, so "just two times" is indeed uncommon.
Hopefully with the recent trend of decriminalization we can get together some respected data about this sort of thing. I still believe that psilocybin has been a net positive thing for most people who have tried it (including these two cases).
Even if the seizure thing were confirmed, all the conventional wisdom re: tripping remains unchanged. Be in a safe place with trusted people, consider a trip sitter, etc. On the other hand, I think having the data might help drive some better decisions: Situations you might avoid (e.g. swimming), etc.
A tangential anecdote... I took a Pfizer COVID booster vaccine and saw my heart rate go up to resting above 100 on my calorie tracker watch. I talked with my doctor about this. He said he stayed away from the COVID boosters because they weren't a good balance of risk vs safety. I asked him whether high resting heart rates were a side effect. He said, no, there's no data for that, but there is data that it has an impact on heart rates.
I said, if there's no data, that means the vaccine isn't the source? He said, no, there's no data because I didn't report it.
Temporarily or permanently?
goddam Mick Jagger !