I've read a lot of the Japanese replies to this post, many of them have very positive reception to Tangle and Whisper showing up. However something else I noticed that was a common trend (maybe not so positive) was confusion that they show up at all. A lot of them wondering why "comic original characters" are here or "arent you supposed to be american comic characters"? Zebra lasso also had a similar sentiment but went as far as to say they are getting preferential treatment. Others chalk it up to just trying to advertise the comic better in Japan.

There is zero communication going on the JP side that the comics are supposed to be (at last supposedly) canon to the games and that them showing up in a console game may be imminent.

In the eyes of Japanese sonic fans, there is no distinction between Archie and IDW. They are all labeled as "american comics" They have no idea what's going on or the type of control the IDW comics are looking for over the series.