Why Joomla's component not having the same MVC structure like joomla 1.5?

Hello Friends,

    I am working in joomla since 1 year and i have also worked on many components but when i got the new project with new component , every time i face the issue with standard coding format. Like joomla 1.5 having the MVC structure but the popular component which is paid one, but still not using the MVC structure.

There lots of component which very powerful and its using in many sites but still not having common MVC structure. so due to that joomla developer needs learn coding structure every time and facing the issue while learning the new component.

Advantage of the common structure : All have to learn the same flow and also having the fastest grow related to publish component. So please my suggestion is to when we follow the any structure like joomla then we should also have the strict standard format to create the new component, which beneficial to grow up whole joomla community.

Here is the list of component which is not follow joomla 1.5 standard:
1. Jomres (Very popular in hotel booking site)
2. Virtumart (Very popular in shopping cart implementation)

there are the other lots of component which is build with very poor standard and its not maintainable at the time of customization.

So if you are the joomla developer and the facing the issue with above points the please post your suggestion to improve the joomla's component standard.


Regards,
Sandip