So, I wanna make something clear: Japan started to become aware of issues with Black Face around the mid 1980s, with reports bringing awareness that there were problems with depictions of Black people in the media. It actually resulted in banning of a Fujiko Fujio series from TV and the Manga being banned from broadcast in around 1989. Effectively, the series in question, Jungle Kurobee (Kurobee being a pun on "Kuro" (black) and "Akanbe" (pulling down the eye lid and sticking out the tongue), was an extremely racist depiction of not just Black people, but also natives, and played up many stereotypes for laughs (including how the character was uncivalized, originally a savage, and his "quirkiness" was just part of the joke).
This in the character in question:
During a rebroadcast in around 1989, as well as attention brought to the manga, there was an outcry because of the content in it, as it's depictions of natives and black people. It resulted, from what I understand, a total ban of the series being published for years. During the series 40th Anniversary around 2013, they finally released the series on DVD and the Manga finally was re-printed, but they put serious warnings on both the DVD release and Manga, and went as far as made a mini-chapter on the manga reprint, apologizing for what resulted out of ignorance in the depictions in the manga.
So again, Japan has been aware of these issues since at least the 1980s. During the 1990s, you did start seeing this less-and-less in a lot of manga, anime, and games, but there was still plenty of problems. Heck, we know this, given even anime and manga as of recent within the last decade, still have occasional problems.
Japan should not get a pass, especially nowadays with globalization of the industry. I understand what resulted in this depictions in the past, notably Little Black Sambo being brought over and the Golden Age cartoons era of animation, which resulted in such depictions for awhile. Given limited exposure outside at the time, I'm not entirely blaming works from that particular era for those depictions fully (since even Osamu Tezuka was guilty of this, and it was well known how political his views about discrimination and racism he was so against, often presenting itself as a central theme in many of his works).
However, with ease of more access to the internet, the fact issues began to be raised in the 1980s, what happened in the past should not excuse why these depictions continue to be a problem in the market today. While again, they aren't NEARLY as bad as they were in the past, they are still happening, and we need to talk about this.