It's fair to say that not all Pi users are decoding video, but with the number of projects doing some sort of video-related workloads, with Pi's processing camera footage and doing CV work and people using Pi's as low power workstations as just two examples, it's reasonable that folks that had historically used Raspberry Pi compute units for video are disappointed to hear that they're now pushing a lot of CPU power to perform video decode and encode.
Which is... everyone who has ever opened a YouTube link? Though might make sense to not include it in the Zero series.
i have three pi's in my house. One that runs my plotter, one that runs my 3d printer and one that's, up until recently (I've moved it into my kube cluster), running pihole. shrug