Is This Cruel And Unusual Punishment?

So I just brought Siri home on Saturday. She's an 8 week old Pom.

Training her has been ridiculous, but obviously it's way early so I'm not worried too much about that. That issue is she just has too much energy to focus, in case someone had tips about that.

My real question: The lesson I'm trying to teach is you won't die if you have to be in your crate for an extended period of time. She doesn't have a problem with her actual crate, as she doesn't mind being in it. So right now I have her in her crate, where I've kept her since about 11am. (It's 3pm now). I don't have it quartered off so she has a lot of space. I put her puppy pad in there, along with food and water and toys. She'll be good for a little while and then get up and start whining and doing this ridiculous sound that sounds like a baby mixed with a cat crying and then eventually go to sleep. I'm in the room with her (so I know she's not injured or anything) but I'm ignoring her so hopefully she will learn that her crying won't get her out, especially if I'm not home.

Is that mean?

PS I have one of those little mesh exercise pens on it's way, so that's really where she'll be on the long days.