If the story this article tells us is true, the FPGA part(i.e. the "personality ") is optimizied by the guys at convey , which created a variety of profiles for specific application areas - and that supposed to take most of the burden of understanding of an FPGA from the programmer, and he really have to understand a high level view of that "personality".
Of course until actually using such tools, it's hard to tell. But the fact micron, a huge company which most likely is interested in big businesses ackuired convey, is a good sign to the use of such tools for the mass market and not just a bunch of highly trained experts.