Yes, it does. ATM the sector's bounding radius is something like 50 ly, so you probably never need more than 80ly of fuel in order to get anywhere in the sector from the closest fueling point. Most civil ships have 40ly of fuel already, and warships typically have 20-30, with a couple of more exploration or long-range ships having 40-50(all phase ships have 50, for instance). Tankers having 300ly of fuel means that it's very trivial in terms of fleet composition to get enough fuel to visit anywhere in the sector, or even to do tours of it. Let's say your ships have an average fuel capacity of 30ly, which is a bit conservative. For a fleet of 6 consumption 2 destroyers, that means you need only 2 destroyer tankers in order to get 97.5 ly of fuel across your whole fleet. Even for really terrible 15ly range ships like Condors can be brought all the way out by 2:1 matching with tankers.
Basically for a fairly minimal investment in tankers(and an arguably less minimal investment in fuel), you can get the range to bring any ship anywhere in the sector. I'd probably say that tankers should be chopped down to 200ly-150ly of fuel range, and some military ships should have their fuel consumption and capacity raised so that they're harder to support with tanker fleets. Tankers should also cost a similar amount of supplies in maintenance as military ships- there's really very little cost in having more tankers(they're cheap, cost little supplies, and as long as you're careful will never see combat).
For a concrete example, I'd compare Starsector ATM a lot with the Escape Velocity series. And if you were looking at Starsector's map and trying to hide something from the player with distance(and there are quite a few secrets in EV:N that are hidden purely by how far from inhabited space they are), how would you do it? There's nowhere that the player can't basically go right off the bat.