Hey Ben,
No, actually there is no solution to the issues described above. Support is very limited and there is no work-around for these. The only way to change how the platform is working is by editing and customizing the theme yourself, which I have not done for my clients, afraid that the next theme update will ruin it all and make me redo the whole work again.
On the other hand if you have the limitations in mind, and you do not mind complying to those, you can build up a good website on Squarespase, but test the theme seo settings first.
I personally would never use Squarespace as a platform. The designs are great, but WP has so many great designs that can be purchased for little money and you can keep your WP website safe by being careful with plug ins.
I hope this helps,
Biljana
