That guest judge Jennifer Lopez called in sick to the “Project Runway” finale fashion show on Friday was perhaps the last nail in the coffin for the series, which is now in its fifth, last, and least-exciting season on Bravo (and soon to move to Lifetime). Nonetheless, about 600 people packed Bryant Park’s Promenade tent for the 9 a.m. taping, to see fashions that weren’t worth the frenzy nor the under-eye circles. Even judges Michael Kors and Nina Garcia chuckled intermittently — the latter was spied massaging her temples — during the five designers’ presentations (two of which will be cut before the episode airs on Oct. 15). Korto Momolu showed skill with subtly pleated, jewel-hued frocks and one beautiful floor-length aqua gown. However, it was Leanne Marshall’s sweet-chic sculptural lineup, clearly the crowd favorite, that proved the most interesting.