I think a lot of this comes down to the fact that bootstrapping network effects is hard.
When someone says Nostr is too small, or they view it only as social media, part of what they are implicitly saying is that its network effect is not sufficiently scaled to be of interest to them, which in a busy person's life is reasonably valid.
So then it depends on the builders to make a product so interesting to them that it breaks through and solves one of their problems in a way they can't ignore.
nostr:note1x32huhztvd5cfpuq95n4v6dr6yjrfr6l2ufx97xvpn45hnnwyvsqlqsj7u