Because the guy in charge of DATS is a pencil necked geek who believed everything that bastard told him...

[Masaru clenched his hands into fists]

... You need to tell your version of me as fast as you can. Or try to find Ikuto and warn him about Mercurimon...

... I know this is gonna disrupt a lot of dad's plans in your world, but... you can't let Mercurimon die like he did in our world... that's what's going to make Yggdrasil try to execute dad...