I didn't notice at first, but, like with some other Wikipedia articles, the editors of this one have enforced the E-Prime constraint on the article itself. After the possibility occurred to me and I went back to the page to check, I only found it particularly unnatural in the initial sentence, since almost every other article begins with the sentence "[subject] is [concise definition]." For a similar example, the "Pl…
In a way, you have found the purpose of E-Prime. While your speech or writing will use more words to avoid use of "to be," you will actually communicate more since you are describing more instead of simply making a proclamation. Word count will increase, but meaning and information will increase as well.
And yes, it did take me a little bit longer to write this comment following the constraint.