Allow players to leash entities while flying

The newest snapshot remove the feature that not allow players to leash entities when using firework rocket to fly. I think it is better to allow players to leash entities while flying.

Now players can leash entities to the Happy Ghast. That is a good way to transporting a large amount of entities at the same time. But using elytra and leash is also a good way when transporting only one or two entities. It is faster and more convenient. It actually provide players two different ways corresponding to the two situations.

I kind of know why Mojang decided to remove it. The snapshot also make the leash snapping distance longer. So it is easier for players to transporting large amount of entities at a time. That the Happy Ghast will lose its advantage.

As I said before, using elytra to transport is useful in some situations. And leave multiple choices for players to choose is more conform with the concept of Minecraft. If you still think keep this feature will affect the game balance. I can provide two opinions. You can set a rule that when using firework to fly, only one leash will keep connection with the player. All the others will break. Another way is only make the leash stronger when connecting with the Happy Ghast. And keep the original snapping distance when players using it.

Really hope to consider my advice.