A lot of the work of an EM is wading into the slurry pit with a shovel so your team are free to get the job done: bashing your head against InfoSec teams stuck in the '80s so the CI/CD toolchain can deploy to production, negotiating freedom with a CTO who wants to specify everything to the level of individual data structures, convincing HR that no, we really do need to pay for a good senior and not hire someone with 2 years experience in a configuration galley because they're cheap.
On top of that there's the process battles; in older firms, all those interminable "but can't they just use Waterfall?" meetings that go on for hours and are spawned every time there's a minor project manager reshuffle. In newer ones, the ongoing fight of, "you can't address debt or build foundations for the future, we need features, if it can't be done in less than a week it's not MVP enough"
There's a fine balance in that I think a good EM lets their team know this is going on and get involved where they want without dumping all the crap downward. Not least because they should be coaching their team leads in that responsibility, so they can take the career step when they want.
Going back to the article, as others mentioned it does read a little bit more like a "why I'm frustrated with my manager" than a "how to be a good EM", but it's easy to misconstrue the meaning of text.