I finally got clipless shoes and pedals this season!

Now I understand that road shoes are basically unwalkable due to the cleat design.

But I have MTB shoes. And I can still hear the cleat clicking on the ground when I am walking my bike through a cross walk, or walking on pavement, etc. The cleat is recessed between the treads, but it's not totally recessed. It touches the ground. Is this normal?

Here is a photo of one of the cleats, and you can see it's getting scuffed up a lot:
https://i.pictr.io/n8Lx.jpg

This pedal and shoe setup was professionally done in a bike shop. They had me up on the trainer pedalling, with a laser beam down the centre of my knee to ensure everything was aligned right.