I have never used Gatsby, but another in the space is Hugo. If you want a blog then you can choose from one of the many different templates. In terms of PITA, this isn't far off from a self-hosted Wordpress option. Netlify even gives you the option to drag and drop your entire site rather than using a tool such as Git. Yes, Hugo and all these other tools can get to be a massive headache, but you can get a blog going really easy.