If the short code is before the More line, then it appears on the Home, if after only if one enters the page itself. (So make a tiny article that looks like part of the header and pin it? We now have some PHP, see below/overleaf. )
The authors have a fremium business model and so we must question the commitment to the free.
The splash screen is not responsive; it looks poor on small screens.
I have installed the “Hello Simpsons” plugin, and the short code seems not to be interpreted.
It renders inline CSS, I am not sure yet, how to use CSS from the style sheet i.e. the encapsulating DIV name is not documented, or I haven’t found it. It will render HTML, is it restricted like wordpress, but <BR> & <HR> both seem to work.
There may be a bug placing it on the home page. Someone else has reported it on the wordpress forums but they don’t seem to reply there. (After searching a bit harder, on the wordpress forums, I found this, which documents the php. Need to try this.)