A few thoughts on that bag:
The top grab handle is a waste, when loaded the bag will be heavy and the zipper will fail.
The zippers won't be waterproof, so expect water to get in.
The mesh pockets on the ends will snag on every branch and twig and get destroyed in short order.
Unless it has internal stiffening, which it doesn't appear have, it will flop and sag.
It will be a bother to get the gear from the bottom corners, especially if it is raining.
The 2D pockets on the sides are useless, everything I own is 3D and won't fit in them.
In general, I'd guess that this bag was designed for suburbanites going to the gym on a cruiser, not for ADV use...