I absolutely used them on other units. I don't have GLAT or any appreciable Spectre investment. So they might as well have stripped him to gear 1 for me and given me the gold materials to use. Because they nerfed Ezra instead of Rey, it means I can't even use him for JMK, JML, or Stranger.
Likewise, I was only using Merrin anymore to take out Jabba's adds for a two shot sometimes, since relic delta had already shut down that full counter for me. There are some other non GL teams where she might still be useful if I've used everything else and am getting desperate. But if I feel like that's going to be a common enough occurance, I can always reinvest. I'd rather get the jump start on other things I'm working on since I won't be using either of these characters now.