Edit: bizarrely, the comment I was replying to seems to be gone...was along the lines of "Yes, it's sensationalist, but there are issues with DWB." Response below is still valid:
Yeah, I'm not denying that Digital Well Being may have a problem in slowing device performance, but that's how the article should be written. This is painting it as either a problem with the new devices, or potentially as Google trying to slow down the phones on purpose (using the word 'throttling' implies intent).
Also, starting the article with "Google might have a big problem with its new Pixel 3a and 3a XL" is just sensationalist garbage. Especially when the 'big problem' can be easily remedied by disabling usage access on DWB.
The article should be "Google's Digital Well Being may be hurting performance on Pixel devices."