That’s true the Philips remote only operates on the ZigBee Light Link primary channels 11, 15, 20, 25.
We don’t have a remote but our Raspberry Pi ZigBee shield RaspBee is able to Touchlink reset ZigBee Light Link lights on all ZigBee channels (11 - 26). It’s quite easy through our WebApp which runs on the RPi itself.
Right now there are $35 shipping cost to US via Amazon we are working to get rid of these but it will take a few days.
By the way the Touchlink reset could also be implemented in the SmartThings hub directly since the scanning and reset of ZigBee Light Link devices doesn’t require the ZLL master key. Still it’s hard to do since the mechanism is quite tricky.