fredfelt
Mostly unknown member
Fresh chillis can vary hugely in strength and add a fresher taste than dried chilli powder, which is usually just uniformly hot.
Does it say chilli powder or dried chilli? Most Mexican recipes utilize dried chillis because each variety of local chilli has it's own particular taste (many are not hot) and are dried in a number of ways. For some, like the poblano, it's all about using smoked chillis and the taste that gives the dish, not the heat of it.
It asked for chilli powder. I can't remember if it specified a type of green chilli but it asked for fresh green chilli as well. It also asked for roasted red chilli of a not very hot variety - but this makes sense as it makes the dish a bit more exciting.
If it asked for mild chilli power I'd put it down to the powder being used to add colour - but the amount of regular chilli powder it asked for does not really have an impact on colour.