I chose those examples, because that's what's been heavily marketed recently, and it all either fundamentally failed, ended up being a scam, or both.
In contrast:
devops is software automation practices...?
edge computing is on-call load balancing? It's horrendously expensive though, so i'll give them time to figure it out
IoT, admittedly, is largely oversold, but even then, there were a ton of products on the market that absolutely outlived all 3 of the examples i've given, combined. HomeAssistant+Zigbee home automation is awesome. A raspberryPi is "iot". Your smartwatch is "iot".
There's a difference between cherry-picking, and refusing to accept that something is a scam. Crypto ended up begging for government regulation, when the original intention was to move away from it. NFTs are a pump-and-dump ponzi scheme. web3 literally doesn't mean anything