Well, its perfect if u like to play exchange french because 1.e3 e5 2.d4 d5 3.exd5 etc... transposing.
Or Owen's reversed with 1.e3 e5 2.b3
There is nothing wrong with all openings u play with white, transposing into reverse reliable defence with black tempo up.
U just lose some advantage because u don't put enough pressure but for most, it is not so relevant...
1.e3, 1.d3, 1.g3, 1.c3, 1.a3, 1.h3 are all fine if u know the reversed openings.
It turns out that Explorer makes great estimations of van't Kruijs opening 1. e3:
https://www.chess.com/forum/view/chess-openings/explorer-s-top-opening-choices-d-20
Maybe it's not so strange since it leads to the Reversed French:
as well as to the Nimzo-Indian attack
: