In my microlight we never practised stalls as we simply don't know the aircraft well enough.
How do you propose to get to know the aircraft better if you do not fly at the lower speed ranges? The microlights I have flown have the most docile stall characteristics I've ever encountered, nothing to get worried about. If you're unsure then book some time with an instructor.
As an instructor, these emergencies are taught or demonstrated once a week at least, a lot of pilots do not practice on their own a lot though. A lot of the biannial flights I do are the only PFL that pilot will do in 2 years, no matter how much I ask them to practice more often.
I often teach students when returning from a nav to postition overhead the field and perform a PFL - subject to traffic obviously. There is no reason why a licence holder could not do this every other flight, keeping their judgement of the glide range sharp, and getting used to gliding it in in different wind conditions with the option of a go around if need be.