Chrome and Firefox have only distrusted Symantec certs in their pre-release versions. The Chrome 70 and Firefox 63 releases in mid-October are when the hammer will fall.
Your anecdotal evidence doesn't prove they didn't respect it. I was just able to load PayPal with a Symantec cert on Chrome 69 on Android, which I realize is dueling anecdotes, but I'm just reinforcing the status quo, you're the one making a bold claim.
https://security.googleblog.com/2018/03/distrust-of-symantec...