Because the export is named GlimmerComponent typescript is unable to offer it as a suggestion when using Component. By convention we have people write import Component from '@glimmer/component, as such they will never be suggested the correct import.

You have to write import Gli... to get the correct suggestion.

Should have no effect on consumers as this is a default export and as such can be named anything by the consumer.

One risk has been raised by @kategengler in that this might cause problems with the docs and a redirect might need to be added.