shyvanna ult change

a while ago, there was a change in shyv's ult on the pbe, to give you the idea of what it looks like i included a link below. https://www.youtube.com/watch?v=8c_nHVlKEMM Now I like shyvanna but her ult team fight wise is slightly unreliable, your tempted to engage whit it as it makes you tankier and buffs your abilitybut at the same time you dont want to use it since it pushes the enemy usually further from your team. so i came up whit this, why not simply change it to an aatroxx Q like dive move which using the idea from the link, deals half damage on impact and the rest creates a ring like arena that basicly act like a rumble ult

what do you guys think ?