I dont think CS plays are same at all, otherwise people would have found counters and be the best already, To me, CS and Valorant macros are pretty much the same, most pros confirmed that. Only the micros makes it different such as Jett dash, KJ turret, etc. CS is also imo more unpredictable and more punishing since you can flank a lot more often (Valorant way less with eg. cypher trips) and you cant bail yourself out (Jett dashes, Sage revives). I prefer CS battles because when opponents kill me, I feel they are better than me, but in Valorant, I feel more times its a lucky play and you cant save yourself from bad teammates by having your own smokes, flashes, mollies like in CS.
For Chinese viewership, I frequently check Douyu and Huya, the Chinese equivalent of Twitch. Surprisingly, both CS and Valorant viewership is about the same. Dank1ng is a very popular CS streamer getting around 3-4 million heat (theres no viewer stats). I checked in both the Asia RMRs and Chinese Kickoff, and the RMR had a million higher heat. So, even though Valorant is getting popular, they have different communities, so the numbers are still high for people who enjoy CS.
With the 800k viewership, that is pretty impressive. However, since it was Loud vs SEN, it was pretty much an ORG clout match, so numbers may be a bit inflated for other matches.
CS esports will probably never die. People been saying that since 1999, but guess what, it still hasnt died. EU may be the dominant region right now, but other regions are coming back slowly again, NA orgs are coming back and talent is growing to recover the original tier2 NA pros that went to Valorant. KRU just entered CS with their Argentinian roster. Asia scene is growing too, the Mongolz a Mongolian team can challenge tier1 teams and a Chinese team Lynn Vision made the major. The Chinese scene have many you g talent but just needs to find a good leadership and their scene will be thriving. So for me, I enjoy watching CS more because of the underdog story for NA to beat EU teams, I find that much more interesting. Especially when teams have a big era like 2019 Liquid before, it keeps me in tune to see which tram will spark a light again and change the scene again.