Have not tried that. Had same broken links when I went to assign the ally when you choose to equip. Basically to reproduce, have no allies assigned. Then start assigning them, links become broken for some reason on that view and also the one where you select the ally passive.
Hmmm can't reproduce it now, links are not busted anymore tho. Strange, will try on another toon and report back
Found it, if you open Maps (M) then go to the ally screen, then links are busted. If you go to your inventory a (I) then it is not broken. The links appear as "undefined" first then if you hover over it, it changes to "text"
This issue seems similar to the UI issue we have with the Broker often where it lists every item as Item instead of pulling in the name of the items. I encounter this every once in a while as well in the Ally screen but have not bothered to report it since the Broker issue has been around for four years without being fixed.