The survey lists 125 languages (our specifications plus the participant's additions) - an impressive variety. Whether some of the supplemented languages should be considered as a standard or framework can be discussed. But more important is the insight that developers are not simply interchangeable. Even experienced developers need time to learn a new language well.
In the top 5 languages used, we find four that are used by most developers in addition to main languages such as Java, C #, or Python.
These include HTML, SQL, CSS, and Bash / Shell scripting. No matter if a developer primarily develops Java, C # or PHP, as soon as the Web comes into play, he will not miss HTML / CSS. The same applies to databases: you can not get around SQL.
What many do not know: developers these days are using the command line or shell a lot more. Especially to automate development processes via shell scripts. Accordingly the high proportion of script writing developer is not surprising. Almost all languages today provide command-line tools and hardly any graphical interfaces for developers - clicking is simply slower.