He's not wrong. I was married in Thailand and when we moved to the UK all we had to do was show the Thai Marriage Certificate to prove we were married.
I asked my local Immigration Office and they said the only time my wife needed to report my address was if I was returning from a trip abroad and there was no need to report when returning from trips within Thailand.
Driving myself on Thai roads for the first time and an oncoming driver on a single track road flashing their headlights at me. I found out this doesn't mean 'after you good sir' as in the UK but 'I'm not slowing down now get out of my way quick'.
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