I (a Haskeller) interviewed there, and ended up in an long debate with their CTO Yaron Minsky poking at warts in each other's pet languages and patterns of thought -- in retrospect we were trolling each other pretty hard just as a natural reflex.
He doesn't. What he really cares about is memory consumption, especially stack consumption. Order of execution can influence that a lot: unevaluated chunks may hold quite a lot memory, and their evaluation in normal order may overflow the stack (in most implementations).
These problems are called "lazyness leaks". This is why he still cares about order of evaluation.