To each their own. This is what I see with the 'safety thimbles' on the market....
If your hawse/flairlead has a large enough throat, you can loop the noose of the soft shackle over a normal thimble and suck the stopper knot up.
Personally, I don't love the idea of sucking the end of the winch line tight ( especially on the trail). Just last year we had an incident where a friend was descending Z-turn in Moab and took a bad line. He ended up a breath away from going over forward from the top ledge. A key factor was being able to QUICKLY access the winch on front of vehicle behind him without needing the plug-in controller or anything 'extra' not included on the winch already. The person first on scene was able to hit the disconnect lever, pull out cable, hook the rear of the endangered vehicle, engage the drum, and have the driver reverse the vehicle to put tension on the vehicle in trouble. This happened in about 20-30 seconds total. This put me firmly back onto the camp of having a complete connection point....be it a hook or soft shackle....on the winch at all times.