In fact the article addresses this as one of the changes: > With version 4.0, it is easier for reusers to understand how to credit the original author of the w

In fact the article addresses this as one of the changes: > With version 4.0, it is easier for reusers to understand how to credit the original author of the work. For example, it clarifies that linking to a webpage with attribution information is allowable, which is helpful since doing so has already become a common method of providing attribution. I believe that was standard practice already, hence the use of the term "clarifies," but now it should be spelled out in the license.