If you observe very well in that case that happened for that guy to lose his BTC, you will discovered that the guy is part of this category of people who just heard that if you invest little money on BTC and hodl for long you will achieve huge amount of money without settle down to know how to write the seeds phrase in a secure please for future purpose.
Sadly, there are a lot of people that are still into that thing. They will only invest but they are not eager to know how they're going to make themselves comfortable by keeping it to their own wallets and how to prevent people from invading their wallets to avoid such hacks, physically and online.
Sometimes, things like this happen for other people to learn their lesson so that they will be careful where they store their BTC and, if you use good wallet to store your BTC and you keep the seeds phrase in a safe place, you don't have anything to fear.
It's too expensive for the lesson that they have to learn. They don't treat it as if it's the most important thing that they need to secure and that's why the are too vulnerable while the people that they whom trust sees their vulnerability, they take advantage of them. I even have a laptop have it repaired and even though I have a wallet installed there with not that much, I still check it out and never lose my eyes on the technician and that's what is giving importance to your thing because it's not just about the wallet but also about the parts that you're allowing these techs to fix them.