no, it's non-free because you're not free to change them and share them
freedom as in freedom of speech
when they have bits of closed non-free drivers, that means that they've deemed something important enough to not let you share it with others, and that holds back progress as far as we're concerned.
So just because they give you some binaries that can use the device, doesn't mean that they haven't stripped you of the ability to make it better, or at least use it how you want to use it. Stallman has the story of how xerox gave them a new awesome printer, but the drivers were closed source, so they weren't able to fix them how they were able to fix the old printer. They had added a bit that when there was a paper jam, it notified everyone waiting for a job, so they weren't able to do this with the new printer, and thus the printer would stay jammed for hours.
Basically, If every developer died or quit, we want to have the code left behind so that we can alter it and fix it in ways they hadn't foreseen, otherwise, we as might as well not even have it in the first place. It's like if you had the directions for baking a pie, but weren't allowed to change it or give it to others, so then if you didn't have an ingredient, you couldn't make pies because you weren't allowed to alter the chemistry of it with a substitute. We'd rather be able to experiment and share. The baking analogy would be like if you didn't have the right kind of oil, and instead of experimenting with other oils, you just weren't allowed to ever bake again. That's what non-free is like in relation to computers.
So it's not about price, it's about rights.
I've got some software that was being used to upload files to a website, and the website changed it's format, so now I have the option of pulling up my sleeves and figuring out how to make it work again, or I can pay anyone who's familiar with the code (or willing to look at it) a fee to fix it for me. If it were binary blobs then I would just be out of luck, it would actually be illegal for them to help me recode it. Thankfully it's open source and free as in freedom of speech, so anyone including myself can do the work. Once it's done, If i think it's good enough to be distributed, I will do so for free online so that someone in the same situation can use it, and later if the website changes again, they can have their go at it. This would be impossible if the original creators had been so ego-maniacal as to think they should be the only ones that could code a few loops.
A great example is Itunes, every day on the computers & internet Y!A pages, i see, "Why isn't itunes working?" and I always want to be cross and say "Well, that's what you get when you're not allowed to look under the hood, you get crazy wacky code that no one can give a good explanation about, because we're just as in the dark as you." For that example, mac is the only one that knows why it does things the way it does, and if it's a mistake or purposely there. If it were open/free then we'd be able to see how it's interacting with everything and give a proper answer. Until then, the answer is "ask mac."