Perhaps. Just yesterday I received a handwritten note from a business. The varying pressure on the pen was clear if you ran a finger over it, as some areas were more deeply indented than others. The line thickness varied, sometimes trailing off into nothing. No two letters were the same, some were illegible in isolation. The lines would even overlap. Every ligature was different.
I've never seen a machine handwrite that way.
I'm sure they'll get better, but there's a long way to go.
I think you would be surprised at how realistic it can be.