Judging by what gets debuted in Netflix for American audiences, aren't a lot of anime these days also created with 3D CGI animation anyway?
Sazae-san used cels for the openings and endings up until 2013.
Kind of a tangent, but I had a bunch of friends finishing their animation programs at SVA in the early 2000s and they had to do everything traditionally and they all made a huge push to "#Save2D". I personally spent several months helping most of them scan their thesis projects for free.
Despite a lot of willingness the studio support just wasn't there and even with all of them established in their careers now there's just no hope of doing anything that way. I kinda felt bad that they were trained in and judged against a process that's basically dead. Not to say they didn't learn anything but a tremendous amount of their time and money was effectively wasted.
And then so many of them spent their first few years working in industry heavily exploited by the local studios, including years of unpaid work in most cases.
Nowadays with hand drawn stuff you're mostly seeing keyframe work being done and the computer doing all of the heavy lifting with inbetweening with maybe some tweaking here and there by junior animators.
The tools are good enough now where it doesn't even look like shitty Flash animation anymore.
Also don't know what you're trying to show me with this 10 minute video. There's maybe 15 seconds of animation work being done this whole video? I see storyboarding and background painting and audio work but this shows shockingly little animation process...(and what I can see clearly is someone drawing keys...)
I'll admit, though, that while I know and have talked to some people in the animation industry it is not my area of expertise, so I could be completely off base with my observations.