Emacs solo actually contains functionality for just that, the below snippet which allows exporting xref buffers to grep format by pressing 'E'. You can then use wgrep etc.
;; Makes any xref buffer "exportable" to a grep buffer with "E" so you can edit it with "e".
(defun emacs-solo/xref-to-grep-compilation ()
"Export the current Xref results to a grep-like buffer (Emacs 30+)."
(interactive)
(unless (derived-mode-p 'xref--xref-buffer-mode)
(user-error "Not in an Xref buffer"))
(let* ((items (and (boundp 'xref--fetcher)
(funcall xref--fetcher)))
(buf-name "*xref→grep*")
(grep-buf (get-buffer-create buf-name)))
(unless items
(user-error "No xref items found"))
(with-current-buffer grep-buf
(let ((inhibit-read-only t))
(erase-buffer)
(insert (format "-*- mode: grep; default-directory: %S -*-\n\n"
default-directory))
(dolist (item items)
(let* ((loc (xref-item-location item))
(file (xref-file-location-file loc))
(line (xref-file-location-line loc))
(summary (xref-item-summary item)))
(insert (format "%s:%d:%s\n" file line summary)))))
(grep-mode))
(pop-to-buffer grep-buf)))
(with-eval-after-load 'xref
(define-key xref--xref-buffer-mode-map (kbd "E")
#'emacs-solo/xref-to-grep-compilation))
This is very true. There several reasons why most EHRs are so bad:
1) The people who pay generally do not use the system. This is true for enterprise software in general and leads to vendors prioritizing having all features organizations ask for (regardless if they are a good idea or not) and also prioritizing features management deems important over fundamental workflow, UX and polish in general.
2) EHRs are very large and complex and can almost always gain more customers by gaining even more features and replacing smaller more specialized systems. A typical EHR will have features for ordering tests and viewing results (for clinical chmistry, microbiology, radiology and more special stuff like physiology etc), appointments and resource planning (rooms, equipment, personnel, staffing), clinical notes including computing scores and values based on other values, medication (ordering, administering, sending prescriptions electronically) and administration (admissions, discharge, payment, waiting lists). That is a lot of different stuff!
3) Once a vendor wins a contract and installs their EHR, very little can be gained by improving the lives of users. Contracts and sales cycles are very long, and the vendor gains very little financially by improving the system. So many vendors are focused on charging money for customer specific features or adding new features to win new tenders.
I'm not sure what the solution is, public alternatives have failed spectacularly since they are typically run by public administrators who have even less of a clue how to develop software and what users want than the vendors.