I don't think so. It's slightly different.

Since TM has responded to me that the band or spectrum that Unifi AIR uses and unifi mobile is different, they said that even if I have 4G+ connection on my phone doesn't mean Unifi AIR coverage is available for me.

They just told me to check here for coverage

Yeah. Limited, very limited coverage.
And how do you expect that to be a "solution" while waiting for actual fiber infrastructure.