It's also a barrier to entry. The right way to do static publishing is to have a dynamic site with a cache. Wordpress started with just a dynamic site. MT started with just a cache.
Cache-only works OK for big sites, but it's annoying for little sites. And the little sites are the big sites of tomorrow.
Wordpress's dynamic-only strategy created a huge pool of potential big customers for Wordpress, and they later tacked on caching. SixApart's cache-only strategy kept a small pool of existing big customers happy, but it was a barrier to entry, and there wasn't an easy path to the ideal "dynamic+cache" solution.
Cache-only works OK for big sites, but it's annoying for little sites. And the little sites are the big sites of tomorrow.
Wordpress's dynamic-only strategy created a huge pool of potential big customers for Wordpress, and they later tacked on caching. SixApart's cache-only strategy kept a small pool of existing big customers happy, but it was a barrier to entry, and there wasn't an easy path to the ideal "dynamic+cache" solution.