I would not say hot composting is a permies no no. Compost is an amazing way to improve your soil, an grow healthy food. How you get that compost is a personal decision. There are many ways to compost, and I would say each has advantages, and disadvantages. Hot composting isn't as environmentally friendly as some of the other methods, but if you need compost soon hot composting is the way to go.
I personally don't hot compost because I'm terrible at it, and too lazy. Cold composting, and Verma compost are what works for me. Cold compost takes forever, but it is so much less work and less complicated. My worm bin is actually pretty quick, a bit more work to sift the worm castings from the worms, and you get a small amount, but it is super amazing.
Unfortunately if you ask 20 people about composting you will probably get 30 answers. You just learn what you can, and do what works for you. Ultimately you will probably learn the most through trial and error. Have fun.