It's way early for them to do any sort of recall. There's simply no reason for them to go through some big, expensive recall before they know the facts fully. Agilent makes good stuff, at a premium price. I'd rather they not simply do a blind recall which is likely to cover a lot of perfectly good items, and then have to raise their prices further to pay for that unnecessary action.
They've been extremely candid here - they've admitted there's a problem, and they're working to resolve it. Let them do their work. This may be limited to a particular shift, a particular PCB panel, a particular soldering line. Give them time to determine what they need to about the cause - what additional info they need, figure out how widespread the problem might be, etc., and create an appropriate response. Everything I've seen here indicates they're taking this seriously and moving forward at a perfectly reasonable pace. If they feel they need to actually see more samples, I'm sure they'll get in contact with people who've said they have the problem.
Until then, there's a warranty available should anyone know that theirs has bad soldering, or if they should have an actual functional problem, bad soldering or not.