Grace seems really lovely, and her action in all her previous videos show that she clearly doesn't not "give a tit"- I imagine she'd actually be quite upset if she thought people thought she was breaking the rules or if she thought she was putting people in danger. She certainly isn't on the level as others having parties and jetting off abroad. But that's not really how things work. I can see how she just wanted to make some veganuary videos and kept going to the supermarket without considering how sensible it is to make lots of trips. She probably does need lots of social interaction and thought she's ok to meet ONE other person for a walk, went for a walk, got some food and then got distracted and forgot you're not supposed to sit on a bench and be close to a friend, or maybe she doesn't realise how far apart 2m is.
And it's true that this is probably applicable to a lot of people at the moment, everyone is trying to stay sane and "live their lives". BUT. This is not going to end unless people stop doing that. This was a chance for Grace to step up (and yes, a lot of other influences too) and say hey, this sucks, but here's lots of nice indoor things you can do to keep busy, have fun, eat well. She's done those videos in the past. She does still do them. So she doesn't need to put videos and lives up of her doing the few things she does do that breaks the rules that make other people go "oh well if she's doing it, we all are, it's fine I'll keep doing it". If anyone can find ways to keep lockdown interesting and exciting in a safe way, it's Grace.