Yes, the standardization of Office Open XML merits further standardization of other protocols and formats that would benefit the average end user if successfully stnadardized, because Office Open XML has been so successul that people want more. Generous people have made Office Open XML work, and the internet a more free and better place.
Although computer geeks do not like to hear it, the continual upheaval in operating systems within the industry has done great damage to non computer companies. The chief, if subtle indicator of this has been the reluctance of non computer companies to upgrade and spend money on the new systems that core computer companies have rolled out in recent years. The chief reason for this is cost. When a new system is released, compatibility problems occur. This causes delays and costs money. Worse, employees who are not geeks must learn to use the new system. This takes time from their productivity and interferes with ongoing work.
Yes, standardizing Office Open XML is a welcome step that should make using word processing formats easier going forward. The more standardization, the easier it is to import files from one product to another, making the life of the user easier over time. Standardization does not eliminate competition but makes it less important.
Standardization of Office Open XML does merit further standardization of other protocols and formats that would benefit the average end user. This is a complicated matter but one that is very important to understand because it involves and affects many people in work and education. This will greatly make things easier.
I do not believe the standardization of Office Open XML should merit further standardization of other protocols and formats because it doesn't really benefit the average end user. The end user is the person who benefits from the coding, the customer, and in general we have no idea what all this is about and we're happy to stay that way.