Any appeal to accidental processes to accomplish an unbelievable coincidence is really just an appeal to unbelievable coincidence.
On August 21, we Americans got to see a total solar eclipse.
The best time and place to view total solar eclipses in our Solar System is just when and where there are observers to see them. Let that sink in.
The basic idea is that meeting the requirements for the habitability of the Earth for observers makes it more likely that solar eclipses are possible.