Peoples' understanding grows and changes over time. There was a time when the concept of signing up for an interactive website was unknown to the entire world (the advent of this understanding was called Web 2.0). You can find similar BBC articles from that era. I'm not going to argue why people "should" switch to Mastodon because that's up to them. It's there if they finally get frustrated enough being abused by twitter to look up how to switch. It seems like quite a lot of people are feeling that lately, which is why we're having these discussions. It's also untrue that mastodon "proudly has no" content moderation, and I'm sure you know this.