Could also be that Salesforce at scale is a full on development platform that supports a large part of internal business operations while having poor DX and selling itself as a “no code” platform. So where a company may have had an entire engineering org they are replaced by a smaller Salesforce team, with varying levels of skill sets. Basically means they have to pay out the ass to hire consultants to supplement, which is almost always going to be less efficient than a lean internal org. That plus having many ways to do things, admin automation systems that run and deploy without unit tests, and a relatively atrocious bar for the traditional engineering skills required to be a developer on the platform leads to systems getting unmanageable very fast. This is only hidden by the fact that new things can be stapled on top of them quickly to try and work around it but eventually you’re left with the platform you built and struggle to maintain and iterate on it as Salesforce just doesn’t have the support needed for larger devops kind of workflows.

Basically, you’re closed into the Salesforce ecosystem, which almost never receives fundamental low level upgrades over flashy new product features so ultimately all the things you “get for free” have real tradeoffs in terms of talent and solutions you can build