It's not that open campfires produce wildfire situations but that it cannot help to cause damage no matter how smallit seems. Also, they are an unnecessary luxury as part of our modern world's free time. You do not need them to cook or survive in any way in the UK. Why would you really need an open fire in British uplands?
Leave no trace, using camping stoves raised off the ground with suitable, cheap and very light kit such as glass fibre soldering mats. You can still satisfy your desire for fire with camping woodburning stoves from the basic honey stove to the wood gasifiers. You can even get fireballs. If they're bigger sized then ebay has larger gf mats sold for BBQs, firepits and chimneys use at home.
Banning open fires Isn't penalising legitimate campers but is a reaction to the irresponsible. It is also highlighting the fact that it doesn't stop legitimate outdoors people from enjoying the outdoors, you will find there's enough enjoyment being in uplands without bushcraft TV!
PS bushcraft TV is kind of apt imho. Just like at home people tend to be stuck in front of the gogglebox, or as it used to be called boobtube, some people can't be by without bushcraft TV. I personally preferred to look out at the countryside I'm in until too dark to see. Then if clear, look to the v stars even far off human lights. Then early to sleep to enjoy the next day from early o'clock to make the most of the day. Just my preference.
Don't get me wrong, I enjoy having a fire but that's usually confined to home, campsites that have fire facility / permissions or other places (such as when I helped out with my son's cubs). The campfire has its charms. I just see it as a luxury confined to appropriate places. The fact that's being enforced, if it really is, because of numpties who abuse the old system doesn't affect me. I already chose not to have fires that this law would affect.