Can valid student or work visa holders enter NZ from overseas in lockdown?

Can valid student or work visa holders enter NZ from overseas during the covid lockdown?

The New Zealand Government has further strengthened travel restrictions, closing our border to almost all travellers from 23:59 on Thursday 19 March 2020 (NZDT).

Student visa holders can no longer enter New Zealand. Returning residents and citizens must isolate themselves for 14 days upon arrival.