> In that case, they don't want things happening before they have tested any proposed changes.
True, but let me continue that sentence: ... and as they have too little time for testing, they tend to resist all change.
There are a few very capable IT organisations that have a systematic approach to change. It would be a sensible thing to give them the necessary tools to manage change. One such tool is to delay browser updates.
But there are many more incompetent IT organisations that are overwhelmed and will keep the same browser version for 10 years if you let them.
I'm just making an observation. I don't know what the best solution is.