But some people here said the fact that they continue this filler and in boruto manga means it still sells well.
I'm confuse which one is true ...
The anime is doing badly. People. 442 received a rating of 0.3 which is amazingly low for a Naruto episode that averages about a 1.6 when it comes to filler (3.2 when it comes to canon). Not even the Japanese like filler, especially crappy rehashed filler of part one SNS. They aren't stalling for the game otherwise we won't be going into an Itachi Arc after this. It's probably because they know right after Naruto ends with canon, people aren't going to spend their time in filler. Don't be surprise if they go right back into IT filler during the canon Kaguya Arc after Itachi; they might even make Kaguya filler and talk about her past in background. Like those half canon/filler episodes about Obito. They are stalling the SNS fight.
Their ideas for Naruto filler are pure crap which is explains the poor ratings right now. Like this Arc is literally a lazy done rehash of Part 1 SNS. It's extremely out of place here. You would have thought they would be more creative with their fillers.