Gas station sushi is still sushi, right? You know not to eat that. Apply your common sense to your security.
Just give me apis, lots of apis, and the secure connection through.
When people insist on doing things that will hurt their site, how far does it go?
No, just being on a shared server is not more dangerous than anything else.
Listen to me talk about security from a non-code perspective (as much as one can).