Originally Posted by
rylan
Correct. The same info is implied when making a dummy booking, although it is difficult and tedious to obtain, as well as not in a friendly view like it was displayed on EF.
However, it's not the same info as delta.dumb doesn't show you the number of OU/RU seats that are available, only whether there is one (or possibly two if you do a dummy booking for a companion who has a DL FF number).