Atlassian allways wanted to compete with those but will never succeed.
Just like they had to admit that HipChat and Stride are worse than Slack and they'd never get to the point that someone would want to use their chat tools, they will have to admit that Bitbucket + Bamboo will never be able to compete with GitLab or GitHub.
In my opinion the only really good things are Jira and Confluence.
There is no standalone tool that does the Jira stuff as good as they do.
There has never been an enterprise wiki which was so usable and consistent like confluence. Even if I have many paintpoints with it, I don't know something better for a wiki solution that has to be used by everyone from management to development (dev's cry the most about it).