Running your own servers can be very stressful for reasons I’m not going to get into here. It is very understandable that a lot of people want to steer away from that. At the same time, we need people to take back ownership of the internet.
In short term we have to rule out that they can set up these services by themselves. The digital alphabetism is so low that a significant proportion will struggle with the setup. Me included. That is why it’s so great that we have services like masto.host which does this job for them.
For the most important services, we need self hosting to be as simple as possible. In particular, I think that the peertube project needs a masto.host like service.