Hi KMS
A couple of points here - Firstly, flight in dry falling or blowing snow is not, in itself, considered to be icing conditions. For this reason, subject to Flight Manual limitations, the helicopter may be able to fly in IMC in snow. However, if the climb to MSA involves a climb into cloud and the temperature is below zero, then the helicopter would have to have an Icing Clearance (usually larger machines only.)
The other thing to remember is that most of this snow is in the form of showers and is therefore easily identified and avoided if required.
Essentially, I can't see any problem with what you have reported.
Cheers
TeeS