We actually agree with the comments on this one. The article is very talk-downy about the actor instead of going "okay, well, intimacy coordinators aren't always bad and should be available if needed but not everybody feels like they need them and that shouldn't be seen as bad always." People should always have the option of them but it should be an option, not a requirement.
Exactly. This was the status quo for decades and the number of (in large majority) actresses who got exploited and abused on film sets is beyond the pale.
Some{one/many} who ensures that intimacy doesn't overstep boundaries, become abusive or go outside of the realm of what is in the script etc.
We assume they also explain how to make things look real etc but their primary function is to ensure actors are safe in scenes where physical (at least) intimacy is necessary/desired.