The delve format is, at least in my view, pretty terrible. It leads to duplication of maps and keys, page flipping, etc.Mearls ends the column by noting that the delve format works against the above.
<snip>
Like LMoP, HotDQ and RoT do not use the delve format, and as a result, they can pack a lot of locations and fairly intricate dungeons into their pages. However, HotDQ and RoT, perhaps moreso than LMoP, suffer from the disadvantages of this style -- sometimes they simply don't provide enough information to make DMs' jobs easier.
If the ToD modules lack information, surely there are better ways to provide it than the delve format!