Years ago I read an interview of one of the upper managers of the project and his very brief post mortem was because Intel was focused on shipping only very hig

Years ago I read an interview of one of the upper managers of the project and his very brief post mortem was because Intel was focused on shipping only very high end chips, few to none of the usual people and processes that were responsible for the development of open source development tools had convenient access to the chips and so no motivation to do that work. That in turn forced Intel to do it and by the time the people making the decisions were convinced of that the willingness to spend money on the project had evaporated.