You’re making it way more complex than it is.

That’s no « different » way to think about it. Space creating more space at each point in space is exactly the way. To add « god mode » to your explanation will only get people more confused, but doesn’t add to your explanation at all since something not testable/observable is sterile in the exercise of explaining something to someone.

You could just say that one will realise going from one wall to the opposite takes longer, then one chair to the next. You can add that if extrapolated, one day the distance between the chairs will be longer than the initial distance between walls. People will be wowed and will begin to understand how expansion works.

I do not see why you went into relativity, nor what « perspective of space look into mass » mean.

My advice is keep it to what you’re trying to explain, and evaluate if adding more confuses more or not. It takes time. Even Dr. Neil Degrasse Tyson spends days on one way to explain things in one shot in a compelling way.