No I would not agree. You are making it much too complicated. If you have a 0.5 lb weight hanging on a cable and it goes around a curve, there is 0.5 lb tension in the cable on on both sides of the curve. It is that simple.

And actually, if gamma is not constrained as in the second diagram, it will always be 45 degreesif the weights are equal. Always 90 degrees with just one weight, right? Add another equal weight and it will be 45 degrees. The only way it will be any other angle is if you constrain it, as in your second figure.