I choose to interpret the post as saying "start small, and be consistent". If you were to tell someone to go for an at least 30 minute walk every day many people would balk at you.

Start with a minute walk. Make time in your day for it. Extend to a 2 minute walk. 5 minute. 15 minute. Etc.

most people dont have 2 hours a day to walk around in circles

I think most people actually would, if they would cut down on other time sinks in the evening.

If they can get a little fitter, they can do 15 minute medium intensity exercises.

The point is, make a start.

They've got to start somewhere. Build the habit, get over the resistance.

1 minute will turn into 2 minutes, then 5 minutes.

And 1 minute is infinitely better than 0 minutes.