I also had low T and elevated E on my initial blood test, and my endocrinologist said I was lucky as I wouldn't need an anti androgen, so I would avoid their side effects. I went on Estradiol only HRT (called Monotherapy).
Anti androgens are used to bring T levels down, or simply block receptors, and this was important when synthetic hormones were used, as they had significant side effects, and AA's allowed keeping the synthetic E doses low. Modern bio identical Estradiol has less side effects (similar to natural E), so there is a move to avoid AA's and the risks associated with them, and rely on the E levels alone to suppress T. It pays to do a little research into MTF Monotherapy HRT, and discuss it with your doctor to see if it would be more suitable for you.
hugs,
Allie