Wikipedia says this on Enterprise Software:
Enterprise software, also known as enterprise software application (ESA), is purposed-designed computer software used to satisfy the needs of an organization rather than individual users. Such organizations can vary from businesses, schools, interest-based user groups and clubs, retailers, or governments. Enterprise software is an integral part of a (computer based) Information System, and as such includes web site software production.
Let's break that down, shall we?
Satisfy the needs of an organization rather than individual users. Surely the organization's needs are the driver, but all organizations are built on users who are individuals. Every group of users changes when a user leaves, or a user is added to that group according to Fundamental interpersonal relations orientation (FIRO). Organizations that don't take that into account will have difficulties seeing the individual user needs.
Enterprise software is an integral part of a (computer based) Information System. That is true, and this trend accelerates. We have more integrated software, clients, servers, farms, and clouds. The same trend happens in every user's private sphere. Who hasn't shared information from one web page, application or game through multiple channels to different environments?
Being a SharePoint consultant myself, I do everything I can to make intranets all but dull and boring. In the latest version of SharePoint, social aspects are greatly honored through comments, likes, labeling, and tagging. On team sites gamification aspects are implemented with reputation points, permission levels, and badges (where have I seen that before? :)). So the industry is definitely changing towards less dull and less boring applications, IMHO. But these changes take time.
Gartner predicts that "By 2015, 40 percent of Global 1000 organizations will use gamification as the primary mechanism to transform business operations":
Seventy percent of business transformation efforts fail due to lack of engagement. Gamification addresses engagement, transparency of work, and connecting employees' actions to business outcomes. Companies apply feedback, measurement and incentives — the same techniques that game designers use, to keep players interested — to achieve the needed engagement for the transformation of business operations. Diverse industry segments are already finding gamification effective, and, according to M2 Research, the worldwide market will grow from $242 million in 2012 to $2.8 billion in 2016, with enterprise gamification eclipsing consumer gamification in 2013.
Still, the dull and boring observation is subjective and probably related to the private sphere of applications. But the trend is definitely moving from dull and boring, if you look at GUI development over time. As an example, SharePoint has evolved from 2001 to 2013.
2001

2003

2007

2010

2013

Texas.gov
Conclusion
Enterprise Software Applications have been dull and boring before, but are in transition towards joyful and exciting platforms implementing more and more of good User Experience. In the years to come, I believe that the information workers and organization needs will keep this trend going for the better.