Eben Upton mentions in several videos that software engineers (especially when they are not paid) and hobbyists are more motivated to develop software and games when a platform remains stable for a very long time (that is, months to years in electronic terms).
Would you spend 1000 hours developing software for a device that will become obsolete in 1 year? You wouldn't, and neither would anyone else. It is a good
thing if the raspberry pi is a stable (non-fragmented) uniform platform that shares specifications across millions of devices for several years. People will invest their time, knowing that their efforts are relevant for many more years to come. We as consumers have become addicted to "the next big thing", not realizing how much you can still do with the resources that you have. Short product iteration time is relevant for companies that are in business for profit, not so for the customers.
Anyway, the purpose of the raspberry pi is to educate. Most parts of education up until university don't require constant innovation. My TI-83 from 1996 (16 years old!) served me perfectly through secondary school. So, as soon as Word-processing, spreadsheet, programming and other software has been developed for raspi, it may as well serve for decades before IT has progressed far enough for the python programming language to become obsolete. Really, I don't expect python to become obsolete any
! Enjoy your raspberry pi and it'll serve you for several years!