Absolutely.
I think that is a common goal of many of the NGOs, together with UN agencies. Yes, it would be very important. However, so far the government, including the Suu Kyi government, has not yet given any clear sign whether or not they would allow this office.
However, if the office is opened, I hope it will do more than just provide technical assistance, but also have the power of investigation into violations of human rights in the country. In some countries, the OHCHR is only set up for technical assistance, but that's not enough. I think that in Myanmar there is still a need to address many other challenges and problems related to human rights.