I don't think you're going to win this one.

I understand that we immediatly get defensive when someone blames our kids... and we should. However, keep in mind that now that she's said something as soon as you bring up her behaviours it's going to sound like a battle " well, your kids acts like a baby" " your kid doesn't share toys" LOL

I would continue working with her at daycare, you are not going to be able to convince mom she is being babied or that they are doing something wrong. Just deal with concerns that happen at your house.

For example, "I noticed Suzzy isn't using a fork very well so we've been doing X Y and Z to assist her"

or

"ive noticed Suzy get's upset when you drop her off, I assure you she get's lot's of love and cuddles when you leave, it's best to make the drop off quick like a bandaid, she stops as soon as your gone. I wouldn't want you to be late for work"

When they ask how her day was you can always mention is "well, Timmy took a few of her toys, but she was a big girl and moved on to play with something even better"

just a few thoughts. I don't think you're going to get anywhere by challenging how they're raising their child, but if you can hint and give suggestions you may get farther.