A lot of companies have integrations to atlassian suite which might not be easy to shift from.
Secondly, there are a lot of individual competitors to Jira, Confluence and Bitbucket but which competitor can offer all three under a single invoice? May be Microsoft, can't think of anyone else.
Also for such an extended downtime the customers are entitled to a discount or a credit note which a lot of CXOs consider in their decision making.
We are in a similar place with Slack. We moved from HipChat to Slack and that was painful enough. Then the company noticed we get Teams for "free" and they tried to push us over to it. But folks have so much automation (because "ChatOps" is that new new) that is pushing things into Slack the company eventually gave up.
It’s been a self-hosted products for over a decade in the form of Visual SourceSafe and then TFS (wonky TFVC not withstanding; Git support was added a while ago as well), now living on as Azure DevOps Server.
visual studio online is what it was called internally, the marketing may have changed. It's okay, and is what was/probably still is used at MS internally to develop windows.
Secondly, there are a lot of individual competitors to Jira, Confluence and Bitbucket but which competitor can offer all three under a single invoice? May be Microsoft, can't think of anyone else.
Also for such an extended downtime the customers are entitled to a discount or a credit note which a lot of CXOs consider in their decision making.