Nowadays those companies are all about re-creating and reconfiguring the way people develop software so everyone will be hostage of their platforms. We see this in everything now Docker/DockerHub/Kubernetes and GitHub actions were the first sign of this cancer.
We now have a generation of developers that doesn’t understand the basic of their tech stack, about networking, about DNS, about how to deploy a simple thing into a server that doesn’t use some Docker BS or isn’t a 3rd party cloud xyz deploy-from-github service.
The “experts” who work in consulting companies are part of this as they usually don’t even know how to do things without the property solutions. Let me give you an example, once I had to work with E&Y, one of those big consulting companies, and I realized some awkward things while having conversations with both low level employees and partners / middle management, they weren’t aware that there are alternatives most of the time. A manager of a digital transformation and cloud solutions team that started his career E&Y, wasn’t aware that there was open-source alternatives to Google Workplace and Microsoft 365 for e-mail. I probed a TON around that and the guy, a software engineer with an university degree, didn’t even know that was Postfix was and the history of email.
Postfix wasn't in my university degree, nor do I think it should be. It's useful to know about SMTP but it's like saying you need to know the history of brick manufacturing to be a material engineer.
Yeah sure, unless you're propagating lies and shitting on everything and everyone that doesn't fit/is your run of the mill proprietary solution that might give a bunch of $$ to your company at the expense of the customer ability to have a future.