Using Wordpress is just another front-end option, but one that everyone has access to and Wordpress also has a huge market of functionality. This would be yet another way to further decentralize Hive.
I personally prefer to have my content on my own domain where I can syndicate to the blockchain, rather than the other way around. This would allow those options and probably a lot more down the road.
It means that even if things ever go sour with hive as a project, you still have your wordpress site, I get it, it further decents and creates solutions to the worries of some hivers.
Besides, it is easier to get SEO eyes on wordpress sites than on hive currently.