They do use the new resampler - and the resampler is changeable in the menu. You ca still set it back to Hermite although I don't see why you would want to - I've found actually that it severely degrades audio quality and even leads to distortion in some cases (like Konami intro sound, like Neo-Geo intro sound, like CPS3 intermission screens, and on and on).
Check it out and let me know if it fixes it. It certainly does fix the Konami intro sound on NTSC SNES ROMs - it also fixes the 'weird' Neo-Geo intro sound (well, it sounded weird on Hermite before, it doesn't on sinc). Overall, it sounds a whole lot better on nearly everything.
So at least the remarks about 'tinny sound' led to something constructive in the end - it would have likely gone unnoticed before.