Of course, in such a brief video, only little can be shown. It is an appetizer for the language in general and not a class like e.g., the by Derek Banas. Though one may argue if the video caption already links to fortranwiki, an additional (prominent) link to fortran-lang.org or an additional slide with points of entry to the language were beneficial. Some of the commenters of the video indeed mention interest or/and a need to learn Fortran.
Yet regardless how constraint the examples advertising a language are, they must represent a benefit for the interested; else, they likely move on to the next. E.g. (with cheerful smile), a vim cup
(image credit to zazzle.com)
For examples depicting code, my anticipations are that
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these work when applied verbatim just as one is asked to provide a MWE addressing a question in a discussion. So not something like Amazon’s Fortran notebook mentioned earlier by Ivan (here). At present, the do loop in the short video does not meet this criterion.
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that they reflect contemporary custom e.g., in terms of the syntax. Once some insight is accumulated, on still can gain additional one by looking into earlier approaches, learn to read and maintain source code inherited. Possibly because Fortran provides better backward compatibility across standards than e.g., Python 2 vs. Python 3, there still are beginner classes teaching Fortran as FORTRAN 77:
(screen photos of an ongoing class 2021/2022 by Redha Aouati (University of Constantine, Algérie); uploaded April 2022 to youtube).
Anticipations don’t always match realizations.