I hadn't heard about issues using MTF in older Hondas. Wasn't my experience.
For the 3G and 4G Civics, Honda recommended 30, 10w-30, 10w-40, or 20w-40. I think I used Honda MTF for well over 100k miles in my '91 Civic. Didn't have a bad bearing until I swapped in a CRX HF trans with unknown miles. If I recall correctly, I put the MTF from the old trans into the HF trans and drove it with a noisy bearing until the body rotted away. I meant to put fresh fluid in it after I knew it was a usable trans, but never got around to it.
