My dad bought this for my mom since I'm against cut flowers as they are just lost potential to me, but I mentioned my mom likes kalanchoes. I honestly think this is way, way worse in so many different levels. Succulent and tropicals, no drainage, horrid care instructions, the appearance of being jammed in without a care to the plants' well-being. I'm going to attempt to save at least the kalanchoes since the other plants look like they have more of a chance, especially after the kalanchoe dies as my mom might be more willing to let me care for it. My mom, being a non-plant person, sees nothing wrong with the arrangement and considers it beautiful. I do admit that it's visually appealing, but for someone who wants to save life, it's an abomination.

I agree with you, I'd put them all in their own pots, especially before they get a chance to establish them self's and all the roots intertwine. The only issue I see is moving the kalanchoes while in full bloom. Other members will have better advice for you

It's a very pretty arrangement and like other small plant arrangements, are meant to be enjoyed for a while as is. Then later the plants can be planted separately as they outgrow the container. They will be fine for a month or so if watered sparingly.