Proto-Indo-European (PIE) notation as qualified linguists themselves recognize it 

You're obviously confused between phonetics as found in the study of, say, modern languages and the proper representation of sounds in protolanguages. PIE notation is not necessarily representative of actual pronunciation and PIEists are clear to make that point in many many primers on the topic. Try for example Indo-European Language and Culture by Fortson. Notice how on page 51 which I kindly linked for you in this text, there is absolutely no use of your imaginary notation. So get off your egotistical know-it-all high horse, read a book and bite the bullet that you're just plain ignorant of basic comparative linguistics, which is all too typical on the children-maintained Wikipedia. Thanks for your inevitable cooperation in advance. May you have more interest in learning than fruitless editing.