Solidity is pretty horrible and the development tools for Ethereum aren't very good. The problem is that the alternatives will have even less. I don't know about EOS but Tezos will have to build libraries. Without libraries we cannot do anything as a programmer without reinventing the wheel. Libraries allow programmers to get things done in a safe way, following best practices, and Solidity lacks maturity in that area which led to The DAO.

JS would be a horrible choice for security but it is probably better than Solidity which is to say, Solidity isn't any better but has less tools and maturity.