The rich powerful development environments you've described exist primarily in proprietary, integrated environments. If you want to integrate the editor, debugger, OS, and language, it helps to be able to coordinate the design of all those components.
On the other hand, languages that have gotten to huge popular scale have typically been more open in their specification and implementation process. Perhaps this is because the creators of breakthrough tools that drive language adoption (like web frameworks or data science kits) prefer these tools, or because the sorts of conditions that lead to creation of such tools are inherently marginalized ones. In other words, if you're a happy iOS developer using a lovely integrated world of xcode and swift, you're not going to spot a dramatically underserved development niche.