Threading.md: How managed threads are mapped to native threads

[dsidirop]

https://github.com/dotnet/runtime/blob/main/docs/design/coreclr/botr/threading.md

Reading said document and trying to wrap my head around what this sentence means to say:

" The public Thread interface available to managed code intentionally hides the details of the underlying native threads because Managed threads are not necessarily mapped to a single native thread (and may not be mapped to a native thread at all) [...] "

Does it mean to say:

" The public Thread interface available to managed code intentionally hides the details of the underlying native threads because managed threads at some point in the future might be re-designed to map themselves to MORE than one (M:N) native thread (but bare in mind that at the present moment the CLR only allows 1:max-1 mapping) "

Is that the correct way to interpret the original phrase? Thank you in advance.