Sure I can. I could claim to type some homeless person off the street without ever seeing him or knowing anything about him at all. It would be a very inaccurate typing, but there's a difference between ATTEMPTING to type someone and being right about it. I'm doing the former. I can claim whatever I want as long as I stay in my place and remember that I'm only stating what I believe. When I start acting like my words are truth and more than just my personal opinion, I cross the line. That is what I cannot do.You can't claim to be typing Shakespeare himself.
In fact, there's really no known way to type people for sure, is there? It's subjective.
I'm not typing his works. I'm typing the person who wrote them. His works are a bunch of books/pieces of paper/whatever he used to write on. They're objects. Objects can't be typed. People can. The works came from him, and when you see something that comes from a person, it says something about them. It doesn't say everything about that person, but it says something. As long as you have that something, as little as it may be, you know a bit about that person and you have something to base your opinion of their type on. I like to think of work as deep as Shakespeare's writing as a window into the writer's soul. I look through the window and I see the soul of a very imaginative NF. That's only what I see, though, and other people may see different. That's the nature of opinion.You're typing his works... and even that could be debated (INFP or INTP?). You've decided that his works are enough of something to call 'William Shakespeare.'
That's the magic word here: Opinion. As long as you keep everything you say on the level of opinion, you can say whatever you want about types, no matter how absurd it may seem to other people.