You really worry way too much.
My advice, always make your own grid, not even editing the ones others did, but make all yours from scratch, that way you’ll never end up overlapping with someone else, and you can make them look natural.
But really, making a grid doesn’t make anyone suspicious, come on, people don’t even know about grids, and the game is full of people messing around, jumping, pausing to talk, etc.
The way the editor works is good, making a grid takes less then 10 min, there’s no point building an over-complicated 3D manual system that would only lead you to place points inside polygons by accident, etc.
And Miqobot said one day they will improve the travelling through points, to make them more fluid.