Earlier quoted context omitted.
I agree with the parent, but for visual reasons: I think the dot is easily missed/forgotten when quickly glancing at your code, and that there is a visual imbalance between a 5 character starting statement (while) and a single character to end the block (the dot likely being the tiniest character available on top). Just my 2c
You do not have to see it, you can see the indentation anyway. The dot is only for the parser (code formatter).
But if you can't see it, you might forget it.