Here's how conversations typically go -- Dev: "Why are you using this? Why don't you use X?" Business: "Are you willing to write interface code to {legacy system}?" Dev: {crickets} Business: "Well, RPA it is then."
To dang's point, apologies for the insinuation, which doesn't seem to be borne out by the submitters' post histories anyway.
A more supported hypothesis is as you said: "This isn't something that a lot of HN-type devs care about or see."
In the same way we don't get many posts about Oracle, VMware, or SAP here, relative to their actual deployments.