This is a follow-up ticket from T403389#11179964
Wondering if it makes sense to still allow direct access to logged-in users. Can we assume logged-in users are not crawlers? In the context of the experiment, I'm not sure if this would allow for any useful comparison or would just make things more complex. If the latter, feel free to ignore. - by @Pginer-WMF
Currently, we don't allow the direct access to the translation page;
Discussion needed