^^ yeah, the Fallon aftershow thing is a good recent example and there are examples on the album too. There is definitely less of it, but it's still there. Plus it's not like she didn't have eras previous to Glitter where she sang in a more nasal style.
Clearly her voice has changed and her style as well, but the runs in WYC and LTW are among the most insane she's done too, it's not like there is a lot to compare it to that will hold its own against those. Heavenly is super layered and there is a ton going on in the end and I'm unclear on how it'd beg the comparison with LTW to begin with. The aim doesn't seem to have been the same.