I see the issue of force balance on these rotors is a sore one.
While I get the "if it were too realistic, people would say it's too hard" approach, I think the current approach is too far removed from realism.
Just to give some perspective, these are the mass values each block can counter (keep at a steady hover) on the Earth-like planet (for simplicity of numbers, g = 10m/s^2):

• Small, five blades: 75 tonnes
  
• Large, five blades: 200 tonnes
  
• Medium, four blades: 90 tonnes
  
• Large, four blades: 180 tonnes
  
• Tail rotor: 45 tonnes
  
• Helo small, two blades: 45 tonnes
  
• Helo, two blades: 50 tonnes
  
• Plane, two blades: 45 tonnes

These numbers are insanely high and completely out of balance compared to vanilla thrusters. As comparison, these are the vanilla equivalents (small grid):

• Small thruster: 8 tonnes
  
• Large thruster: 40 tonnes

You only need to look at RL helicopters to realise how fragile they are. They weigh nothing near these weights and their engines/blades provide nothing remotely close to the numbers above.
There is a reason why larger cargoes are transported by planes. Helicopters are just not capable of providing the required thrust and definitely lack the structural integrity for such loads.

I'm fine with a little bit of exaggeration but let's not take it this far, shall we?