It seems like the charging during the last meet may have caused some kind of fault (it very well could have been me, but I didn't notice anything during my session).
Unfortunately, their NEMA 14-50 plug is on the same breaker circuit as their fuel pumps, and when I first heard they had problems, they were saying that their septic system had failed in some way. They claimed that they were waiting for an electrician's assessment before allowing any charging again, but this sounded like an uninformed cautiousness rather than a confident assessment. I think we've gathered collectively that 3-5kW is okay there, but no one seems to know what or who triggered their problem.
I think it is the case that their electrical system is old and not very robust, and any serious EV charging in their location will require an unfortunate amount of investment. It's annoying that Toyota is installing a hydrogen station across the street for their Mirai car, when EVs are actually common now.