I have seen the following sentence in some article: Frankly, I think the point it makes is rather obvious, but to my surprise the publication was followed by a further flood of objections that - more surprisingly - continues to the present day. The context is that the author stated a controvers...

Tall, arched windows, open now to let in the new, green smells, let onto a balcony overlooking her small private garden, where she seldom had time to walk. Is let onto here means open into/onto?