It would not be accurate.
Quote from
Randy Oliver "
Heinz Kaemmerer of Heilyser Technology Ltd. says: “We treated several colonies for 3 months during winter, once a week with the vaporizer and all colonies survived.” “With brood, colonies can be treated with the right amount of OA 3 to 4 times, a week apart; there is no harm to bees, queen or brood.” Medhat Nasr confirms that vaporized oxalic is very gentle to the bees."
Relevant references can be found on the link above.
And, more significantly, personal observation. No visible damage to open brood after repeated treatment 3 x 5 days apart early- and mid-season in 2015. No apparent delay in egg laying by the queen. No problems with virgin queens in casts who subsequently got out to mate successfully (small numbers but reassuring).