"Welcome" is Heading 1 - in the contents it is styled as SMALL CAPS with an empty linespace above it.
"Do Not... etc." is Heading 2 - in the contents it is styled as Regular with no space above it.
"New Servitor etc." is Heading 3 - in the contents it is styled as Regular with no space above it and a 0.235in indent.
These are all stylistic choices. The simple answer is that I like how it looks.
To change it, select the entry in the table of contents (H1, H2, or H3) and adjust its style in the Text Styles panel. For example, if you want each subordinate entry to have a greater indentation, give the TOC 1: Heading 2 style an indent of 0.235in, and TOC1: Heading 3 style an indent of 0.47in.
The reason for the naming is, quite simply, because I called this TOC style "TOC 1" - i.e. Table of Contents 1.
I hope that helps!