I'm sorry for the long wait until the official review.
I agree with your own assessment of the map in terms of "is it viable for competitive play?"
However, other than that the map does of lot of things right. The visual theme is creative and I do like it a lot. Maybe the color shades of the sand an green tiles are not in perfect harmony, but without custom imports you gotta make do with what the world editor offers, so no complaint from me. And in particular the minimap is a work of art.
In terms of gameplay, I noticed the following issues that also prevent the map from being competitively viable:
1. No attractive options for AoW-creeping at all.
2. Getting only lvl 2 item from the lvl 19 camp at the naturals is not within line of standard item drops at all.
3. The creeps at the natural are also too strong, fastexpanding isnt really possible without taking a huge risk.
4. Too many poison creeps overall, footies in particular will suffer a lot from this (and from the chain lightning creeps too, aoe damage creeps are normally rare outside of red camps).
Additional thoughts:
5. You could try a non-Lordaeron-Summer merc camps if you accept that the map wont be competitively viable anyway.
6. I dont really get why there are two identical 6-3 hydra spots per player, why not more replace one of them with something different? Especially since at the merc camps, these exact creeps appear again in doubles.
7. There is ofc the off chance that one of these spots aggroes player units by accident, but in reality situation where this happens are unlikely to happen often ingame.
So overall, the map clearly doesnt have anything that can be considered as a bug, but the itemdrop at the expansions comes close. If the map was smaller, it would be possible to turn it a something that could be worth trying in a tournament. But even the current incarnation isnt bad at all. Map approved.