So picture this: End of the season, and you have a massive backlog of Gambit and Trials engrams to burn through. Say you've been slacking off on burning them up and you're sitting on over 20 engrams (GernaderJake as an example had over 400 Trials Engrams)
Unfortunately, you only can hold 10 Engrams at a time, and unless you want to spend resources to Focus the engram, you need to go all the way up to Rahool to decrypt them.
Then walk / warp back to grab another 10.
Then go back to Rahool to decrypt them.
Then go back to grab another 10.
etc.
So... can we get the option for a Vendor to also do the random decrypt that Rahool does? As more vendors get updated to this new model, it will only accelerate the issue.