Planning for coverage allows you to tell individual taxpayers that they're "served" by the transit they help fund, but most will never use it because it's infrequent and the routes take forever to get anywhere. Optimizing for ridership means you focus on a smaller number of straight-line routes that are highly useful and run them at high frequency so that a smaller pool of people come to rely on them and use them regularly, instead of as a last resort.
A primer from transit consultant Jarrett Walker: https://humantransit.org/basics/the-transit-ridership-recipe
That's definitely my experience in York Region (north of Toronto for those unfamiliar) and Ottawa. Far too many bus stops, but wait times > 15 minutes _per route_ outside all but the most peak parts of rush-hour. Including on their "bus rapid transit" trunk lines. You almost end up feeling like a patsy every time you decide to take public transit.
The worst about busses is when they come every 30 min, but already arrive full. Or when they have more than one bus for a given timeslot and don't dock the less-full bus first.
(In other words: instead of a half-empty bus every 20 minutes you end up with packed buses every 5 min)
Including commuter rail.
And it all runs pretty regularly (bus, tram, train)