Short answer: maybe.
Long answer: Warden got an upgrade. How was it upgraded? No one knows yet (except Blizzard of course). If the honorbuddy software itself is now detected, then you would be at risk no matter what you do with the bot, it would be the attatching to the WoW process that is detected, not any specific activity. The devs have stated that it will take 30 days before they are able to report on the changes to warden.
Therefore, it is up to your individual discretion as to whether or not it is safe to use. My personal speculation is that the software itself is not detected, or else they (the devs) wouldn't have let us connect to HB at all, as a mass banwave would be somewhat bad for business. However, it is safe to assume that the risk for all forms of botting have gone up, even if you're only using a CR. I am waiting it out until more information is available.