Throw exception in functions which is specified as noexcept

[EstherWx]

When a function is specified noexcept , the compiler does not generate any code to throw exceptions and any uncaught exception will result in a call to std::terminate.

in allocator.h, ~MemoryPoolAllocator() is specified noexcept, but it calls delete, which will throw exception.
~MemoryPoolAllocator() RAPIDJSON_NOEXCEPT {
...
RAPIDJSON_DELETE(a);
}
#define RAPIDJSON_DELETE(x) delete x

And MemoryPoolAllocator& operator=(), too.

Is it intentional to do so?
Could we move "RAPIDJSON_NOEXCEPT" here?