Decipherments of ancient scripts are often attributed, and sometimes misattributed, to individual scholars: Jean-Jacques Barthélemy and the Phoenician alphabet, Champollion and Egyptian hieroglyphs, Magnus Celsius and Staveless Runes, Michael Ventris and Linear B, Edward Hincks and Akkadian cuneiform, Yuri Knorozov and Maya glyphs. These were undeniable intellectual achievements. They...
Three things are necessary to decipher ancient writing. You need lots of examples of the script. You need a good understanding of the cultural context of the writing system. And, most important, you need a bilingual, or better a trilingual, inscription of a known writing system. On first pass, Linear Elamite was lacking all of these conditions.