250mg almost certainly wouldn't be TRT.
Im on 250mg trt
My opinion: a true TRT regime shouldn't require, or "need", any sort of CBC management.
The problem is that what most people WANT their trt dose to be and what they NEED it to be are 2 very, very different things in most cases.
You're certainly right about the second point you made but I slightly disagree with the first. Erythrocytosis and polycythemia are pretty well documented in true TRT. It affects older males much more than younger ones but also the method of delivery can impact this as well. Erythocytosis happens in about 5-15% of cases with those who use patches or gel applications while the rate it happens with intramuscular injections is higher. It's assumed it's due to the higher doses and/or higher serum levels associated with IM use. Normally you're right, reducing the dose will take care of the problem but not always. Some physicians now have adopted a practice where once the RBCs rise too high, they'll discontinue the TRT for a little while, use another HPTA protocol (probably a combination of clomid, nolva and/or HCG) and then resume TRT after a phlebotomy and when RBCs come back down. I do agree though that probably most of the time this can be avoided with a simple dose reduction or increased dosing frequency but most guys don't want a lower dose or lower Tt levels for whatever reason.
Doctor prescribed or self prescribed? Total test at that dose?