I consider my 7ft easy to handle but I'm a big and very strong guy and she's a puppy dog. I got her a few months back and the previous owner did a great job raising her up.
My big Blood is more of a challenge. She's 6ft but she's so girthy and heavy. She's very good with handling like the boa but how she's built changes the game. Even with my large hands she's hard to grab at times.
Now say either were in a bad mood. That would change things considerably. I don't think I would have any issues but like already stated I know how to handle them and what not to let them do... Like ever coil all the around my neck. They can choke a person without trying or even realizing it, and it doesn't take a long time to choke a person out. A person could accidentally get hurt by just not knowing a simple thing like that.