You ever think what it must be like for 8 year old kids nowadays to watch Best Wishes as their first saga? To them, Iris and Cilan are their, "Misty and Brock," and Team Rocket are actually competent villains. They may briefly know who Dawn and Brock were if they caught the tail-end of DP, but even characters like May (and the rest of the AG and DP cast) are probably unknown to them.
These kids don't know anything about the shows history, like Ash's rivalry with Gary, why Ash's Charizard was important, they may have seen very little to nothing of Misty or Brock in the show, and don't know about the majority of Ash's older pokemon. And no, most little kids don't go online to watch pokemon episodes from decades ago unless they're purposely shown them by older siblings. I know if I was 8 years old I wouldn't be thinkijng about these old pokemon episodes from years ago.
I thought it was always obvious the reason the writers do these, "Fresh starts," is because they don't want to confuse little kids too much about these older characters and Pokemon that they don't even know about.
We've already seen some people come into the fandom who said they started watching with Hoenn or Sinnoh oddly enough, which already proves the age gap of fans is now scattered between younger and older fans. How do you feel about little kids watching the newest arc?