Casting aspersions without proof, even if it's something everyone knows, is in poor taste and ad hominem. I've never heard a bad word about Jaredd before, so Andrew seems more like a stinky person to me right now.
There's a direct quote in the article from Jaredd talking about poor work/life balance
There are two direct quotes in the article. The first is from Jaredd saying he works 90 hour weeks. The second is from Jaredd/his new company saying if you care about work/life balance, don’t work at this new company. So that’s definitely not an ad hominem.
The other stuff maybe, I’m not familiar enough.