Kinda disappointed that Baalmon's the only Free. Considering how recent media has been combining non-attributes, Variables, and Unknowns into the Free type, this might've been as good a time as any to just convert some of these previously attribute-less Digimon into the Free type, giving it some much-needed expansion.
Shoutmon being a Data-type's a pleasant surprise. It's always nice to see them dodge the painfully typical Vaccine protagonist, and even though X7 Superior Mode isn't in the Reference Book yet, I'm hoping it retains the Data typing (it's almost definitely a Super Ultimate, and more Data Super Ultimates are most welcome). Also kinda interesting to see that all of the Shoutmon+equipped weapon forms are all considered Child-levels (including Shoutmon+Dorulu Cannon, despite Dorulumon being an Adult). Given this, as well as X4B, it seems that some DigiXroses do decrease the levels of one of the components.
Though, looked at another way, maybe they could retcon it so that component Digimon are just lending a portion of their power to the main body. Sorta like how Omegamon shared its power with Imperialdramon Paladin Mode, rather than explicitly evolving into it, and the same with OmegaShoutmon (which is now a confirmed Perfect). And with Xros Wars Digimon now having official levels, I wouldn't be surprised if some media lets certain Digimon simply evolve into the Xrosed forms normally (kinda like how some media lets Paildramon just evolve from XV-mon without needing a Jogress).
Without Tyutyumon he’s less powerful and basically a Child Digimon like how Tailmon is a Child class without her Holy Ring.
Speaking of Tyutyumon, I'm a little surprised that it was made to be just a Child. Given its profile, it does come off as a Digimon that's more powerful than it lets on (and Xros Wars even portrayed this with its ability to grow gigantic). But I guess in the end, they decided to make it even more of a Tyumon expy.
Zameilmon and Splashmon are a level lower than the rest. They should've at least had Splashmon's "darkness mode" as a Mega, since that was a more powerful form (the water tiger thing), but they share a profile as one species. oh well.
I am hoping that they separate Splashmon Darkness Mode into its own profile at some point. For that matter, there's still plenty of other Xros Wars Digimon that are in need of a profile (including some that have standard artwork). Since this major change just proved that Bamco isn't quite ready to completely abandon Xros Wars, maybe they can all have a renewed shot at getting into the Reference Book eventually (except for you, Dorbickmon+Huanglongmon..... you go sit in the corner and stay there).