How do you figure? What would you consider "maintaining spacing"?
May be bundling in the sense you are used to is not the correct term I should use. However it would have to be derated per 2008. I personally would still say it is bundled for derating purposes there is no spacing between those conductors and would not pass the job. See below note last two paragraphs.
334.80 Ampacity. The ampacity of Types NM, NMC, and
NMS cable shall be determined in accordance with 310.15.
The ampacity shall be in accordance with the 60°C (140°F)
conductor temperature rating. The 90°C (194°F) rating
shall be permitted to be used for ampacity derating purposes,
provided the final derated ampacity does not exceed
that for a 60°C (1400 P) rated conductor. The ampacity of
Types NM, NMC, and NMS cable installed in cable tray
shall be determined in accordance with 392.11.
Where more than two NM cables containing two or
more current-carrying conductors are installed, without
maintaining spacing between the cables, through the same
opening in wood framing that is to be fire- or draft-stopped
using thermal insulation, caulk, or sealing foam, the allowable
ampacity of each conductor shall be adjusted in accordance
with Table 310.15(B)(2)(a) Exception shall not apply.
Where more than two NM cables containing two or more
current-carrying conductors are installed in contact with thermal
insulation without maintaining spacing between cables the
allowable ampacity of each conductor shall be adjusted in
accordance with Table 310.15(B)(2)(a)