In Magento you can create CMS pages. It is also possible to add CSS and JS code, directly to the page, which I sometimes do for rather smaller changes and style fixes and such, because then that specific code is only loaded on this page and not on any others where it is not needed.
Also it is way faster than the normal way and I don't need to push it via git which can take ages because our agency is slow, and it costs us money if they have to deal with git.
But now our agency don't want us to do this anymore, because they say it is dirty. If it is dirty, then why is it possible and not blocked by magento?
And how am I supposed to add a code which should only render on a specific CMS page?
How should I argue?