It's a totally new park, being built from nothing, so they have the space to throw in whatever they want.
I'm sure I made a topic about this a couple of years ago, so I'll just repeat what I said before.
Until now, Wanda have made good on their claims and haven't gone for exaggerated marketing (ie. lies). The Intamin hyper in Nanchang is/was sold as China's tallest, which it is, when they could have gone down the Happy Valley route and claimed it as Asia's tallest, knowing that the vast majority of their customers would never know. They didn't.
Their concept art has also been accurate. The tilt coasters, for example, were deemed by many to be ridiculous, yet here we are.
I'm not saying this is happening - I don't think it is at this point - only that up until now they've been fairly consistent. Maybe they intended to do it - they announced this around 3 years ago - but went back on the idea.