From the methodology section: We used data from last year’s survey and trends in tags on Stack Overflow to identify which technologies to include on the survey

From the methodology section: We used data from last year’s survey and trends in tags on Stack Overflow to identify which technologies to include on the survey this year. We prioritized popular and fast growing technologies, considering which smaller or shrinking technologies we could remove this year. So, I think it possibly wasn't listed as an option. Something to consider next time one of these reports is cited as evidence for or against something, as editorial discretion may or may not wildly change the meaning of the less popular items. In this case it may have been the difference between an item being included but lowly ranked and not included at all, which without additional information implies it didn't rank enough to be shown, but I'm not sure if that's the case or not (but I have my doubts that WebAssembly outranks Perl).