I don't think most people are saying the UK is the most wonderful place, and we're certainly not a brigade. We are people who have good knowledge of Canada, and we are generally saying - there are great places. But moving to Saskatchewan is not likely to be a good move for a 14 year old from the UK, particularly one who doesn't want to move. There have been suggestions made for other areas of Canada - some not too far away from SK even - that would be significantly better for adjustment and for the sorts of outdoor activities that are wanted, and certainly for weather, scenery, etc. There have been discussions about the types of schools and what is good or bad about them. Education is much less centralised in Canada, compared to the UK.
I think the response has been measured, and many pros and cons discussed. There are many reasons I would like to move back to Canada - scenery, outdoors, quality of life, family, aspects of education, community-minded people, etc, as well as many reasons to stay in the UK - ease of travelling elsewhere, ease of travelling within the country, aspects of further education, arts and culture, etc.
I do think SK would not be top of anyone's list to move to. It's different if you're born there and have family ties, but even then, many people move away when they can, including my relatives. Elsewhere in Canada? Yes, many places would be an adventure to move to, with a 14 year old who is willing to adapt. But if she is already reluctant, then moving to somewhere that is already going to be challenging doesn't seem like a good idea. There are alternatives that would provide adventure and still be closer to family.