Imagine there’s a new technology and somebody wants to use it. So they are quite motivated to fit it in with the existing software and do a lot of work and maybe even compromise to get a proof of concept done and the technology accepted. It works. People love their technology, it’s new, it looks good and it does not cause problems with existing stuff ….
Once though the technology is accepted and becomes integrated in more and more projects, those using it aren’t as motivated as before to make the integration work as smoothly as before. What was once a simple thing now forces others to compromise more and more parts of their projects to integrate the “important” new stuff.
So just don’t bug me with a proof of concept … I know where it leads to.