The relevant quote actually concerned the collective infrastructure in the US, including health insurance. The actual quality of care in the US is great, particarly for specialty cases... for the few that can comfortably pay for it.
Relevant part of their tweet:
"This applies if you are staying in a country with poorly developed health services and infrastructure and/or collective infrastructure, for example the USA. The same applies if you do not have health insurance."
As well as a message, now apparently removed but archived by others, on their website:
"This also applies for countries with poorly developed collective infrastructure, for example the USA, where it can be difficult to get transport to the airport if you don’t have a car. The same applies if you don’t have health insurance."
Relevant part of their tweet:
"This applies if you are staying in a country with poorly developed health services and infrastructure and/or collective infrastructure, for example the USA. The same applies if you do not have health insurance."
As well as a message, now apparently removed but archived by others, on their website:
"This also applies for countries with poorly developed collective infrastructure, for example the USA, where it can be difficult to get transport to the airport if you don’t have a car. The same applies if you don’t have health insurance."