Ironically, I am enjoying Beast Children from now (Chapter 2 was very pointless and boring, besides the great twist at the end). It ticks 2 boxes that I want from a manga early on: fast paced and fast introduction to the main characters. The art is very uneven but passable. Still very, very generic, and the characters are still largely unlikeable, but I find it better than I am expecting it to be. Or maybe my expectations became too low recently....
Oh I agree on both counts. If TSS plays it's cards well, it could potentially do decent. For now, it's not there.
Regarding the S8 training, I assume the explanations will happen next week. It's a shame, since I think Samurai 8 has a great setting to boot and an interesting premise that can go in lots of ways. Sadly, it's still just on the "potential" level.