On one hand it is clear that just like many other reboots in the past, they want to introduce the series to a new audience...
The problem with
Bastard!! is nothing really suggest this is an attempt to reintroduce the franchise. My previous post on the matter (the one subsequent to what you quoted) lays out my feelings, but this new series is content for contents sake, primarily funded and exclusive to Netflix. The Japanese rights holders are merely taking an easy payday on a dead franchise. If the idea was to reintroduce
Bastard!!, a deal would have been struck, where the show broadcasts both on Netflix and some of the domestic satellite networks, as they're the primary source for most enthusiast-grade anime. To give an example,
Komi Can't Communicate is currently a popular franchise; Netflix has some stake in the anime, but in Japan episodes for both seasons of the show released weekly on Netflix and concurrently broadcasted on several domestic stations.
Bastard!! was the usual day-one drop of all 13 episodes, even in Japan; the series has essentially already come and gone. Given its manga roots, you'd also have expected the publication of some new edition of the comic; or in the specific case of
Bastard!!, even if the original creator wasn't involved, possibly the completion of the large-trim
kanzenban editions, which sputtered-out at volume 9.
Going to your
Ushio & Tora comparison, the television series broadcasted on several networks in Japan and the manga received a new complete edition.
Bastard!! got a pop-up exhibition at the Tower Records in Shibuya and copies of the original Shonen Jump
tankoubon, featuring an obi advertising the Netflix series, were made ready for bookstores. Nothing suggests there's any attempt to push
Bastard!! beyond those who are already fans or at least somewhat familiar with the franchise.
To your point about needing to tone down the content in
Bastard!! for mainstream audiences, the manga isn't nearly as gory or inappropriate as some may come to think based on a quick Google search. Most of the more explicit moments are from either the
kanzenban editions or
doujinshi & art books published by the original creator. Given other late-night anime being broadcast in Japan,
Bastard!! could exist with no problem, besides some stations choosing to hide female breasts and (maybe) dim some gore.
Staying on the topic of content fears, I mainlined these new 13 episodes, and other than the choice (or Netflix stipulation?) to go with Barbie-doll anatomy (likely to be fixed for the home-video release), the series does not eschew its violent, cheesy, raunchy nature. The series is, however, a boring and completely workman-like creation. Regardless of whether anyone on the project had passion for the franchise, to their credit, they clearly did their homework in terms of keeping faithful to the source, but from an overall production standpoint,
Bastard!! could be any other quasi-serious, fantasy-themed anime, which isn't what anyone would want from a modern adaptation of material from roughly 1988 to 1996. Netflix is running around foreign markets buying content for their platform and oftentimes fails to result in people asking, whether what's being funded does the property justice. In the case of
Bastard!!, is the first half of the comic really best suited for a 26-episode, TV format or would several long-form features be the better option? But again, this series is content for contents sake, so it doesn't really matter.
For what it's worth, I don't purposefully want to maintain a negative outlook on this
Bastard!! project, it just doesn't bare the conventional markings of an attempt at reviving and pushing a franchise, which would usually start with the Japanese rights holders (not Netflix) and possibly result in some anime-only ending to the franchise.