I agree that it is important for other countries to learn how to host and promote a ParaAthletics event so they too can benefit from the way a celebration of diversity transforms a society's culture. However, there is already opportunity for this with annual events like the World Para Athletics Grand Prix Circuit. It is a privilege to host a world championships, not a right. It is reasonable to expect a host nation to demonstrate their ability to engage audiences, sponsors, and media before being awarded the biggest event on the world stage. World class athletes deserve a world class event. At this point in time, the 3 best way to reach and inspire the corners of the world are:
1) Invest in free, high quality live streaming of para athletes doing their thing in a stadium full of excited fans!
2) Reduce the high entry fees for athletes and support staff to register for the World Para Champs (900 euros to enter the meet - travel, accommodation, and food are on top of that). High fees prevent nations from bringing full squads, which limit athlete development in those countries
3) Provide opportunities for countries with a desire to host the world champs to be involved in the delivery of a world class event like London 2017 so they can improve their skill set and take administrative expertise back to their countries
For an alternative perspective, you can read Tanni Grey-Thompsons thoughts on why London shouldn't host the event in 2019 http://www.bbc.co.uk/sport/wales/40709390