I agree that the name goes with her siblings' names. LindseyMarie seems very 80s to me, but Lindsey is a warm, friendly sounding name. I don't mind it even though it's not something I would have chosen myself.
Yeah, I'm a bit surprised to see a baby Lindsey. It's not a bad thing, though... I find many names people associate with the 80s still usable, they're a welcome change from Jaylyn and Harlow and Mykenzi.
The mom is a teacher, so she sees a lot of popular names. My mom reminded me that her sister's mn is Lynn, and Marie is probably honoring the aunt I mentioned.