Aren’t those zigbee 3.0 devices? If so, I’m pretty sure they won’t work until the hubs have added zigbee 3.0 support, which they don’t have yet.
But since you did get it to pair with the hub, you should be able to now pair it individually To any ZLL or zigbee 3.0 bulbs that you have as a parallel means of control, like what people used to do with the Lutron connected bulb remote. But I don’t think smart things is going to accept commands from it yet.
The Z wave alliance standard requires backwards compatibility, but zigbee never has. So, no, there is no requirement that an older zigbee hub be able to support a zigbee 3.0 device.
You have the Hue bulb connected directly to the smartthings hub, you’re not using a hue bridge?
You would likely need to write one, buttons and remotes all have different numbers of buttons and supported action types like single or double presses and holds.