To be fair marketing vibing content pages is different from managers vibing code that powers a trading app for example.
They could even use one of many headless CMSs combined with a static generator. Claude Code in the hands of non-technical users deploying to prod regularly seems like one of the worst possible ways to do it (except for the "cool" value telling people about it).
At my company the internal devs don't even have access to wherever the company site is hosted, it's a WordPress CMS and marketing can make updates safely with a couple clicks and zero day-to-day development oversight required. IT just helps keep the box updated but otherwise it's entirely their own thing.
As difficult as it is to use CSS to centre a field, the stakes are in a different ball park.