they are still luxury apartments catered to rich expats who may or may not materialize.

Forest City was planned as a real city with malls and everything though.

but it was isolated ulu place

Tanjung Tokong/gurney are a mature development bro

The Andaman island can easily flooded with cars and population when the road access are opened

True.
But what about that Silicon Island in the south? Is that a hot area too?

After watching to the end of the video, I guess Andaman is better planned than Forest City (planned for 16,000 residents vs 700,000 residents) but they are still luxury apartments catered to rich expats who may or may not materialize.