It is a regular cycle. The army solves a problem. REMFs find the solution cumbersome to their own logistical problems, and don't use it. They provide substandard equipment instead, that makes their jobs easier but endangers soldiers. In peacetime nobody cares and they have their way. When war comes, their compromises are unacceptable and everyone scrambles to reinvent the wheel. While the reliable solution to the problem, already found long since, sits on the shelf as "outdated".
Over and over.
The other thing they could do is pull some of the old 2-1/2 and 5-ton trucks, the old ones with manual transmissions, and turn them into gun-trucks. They can handle the extra weight of armor plate and can be mounted with fifties and grenade launchers for convoy escort. These would deter snipers and ambushes.
It boggles the mind that some in the Army can't figure out that a mix of these vehicles are needed. Armored humvees and trucks for the high-threat urban environment and unarmored ones with high off-road manueverability for the scout and open-country combat missions. Common sense to me.