Why does LEGO keep spoiling us DR S4 ? [ Their 2 new official clips on YT ]

So, First we get this 1st clip from which we find out something that I'd consider a rather huge spoiler,a mention that there were more Green Ninja ...But instead of them leaving it at that, which was already too much, they release the clip that's literally immediately after, where they talk about it even more. My post isn't a rant about the context itself and whether I like this or no, But about the fact that this is a huge spoiler that changes everything we've ever known, everything that the...