Encouraging free account players to provide the support that player with paid accounts often shun was indeed part of my reasoning and I actually thought of doing so as beneficial, so I'm curious as to why you think making the support vehicles available for free would be disastrous. If you want, offer some perceived scenarios that could convince me. I'm willing to recant if they are convincing.
Guys sitting on the concrete with their Tiger 2 and a literally constant supply of vehicle supplies sitting behind them from their second computer, without needing to be relying on another player to bring them.
Running sups/troops while you cover them in an aircraft without having to rely on other players.
Single player base sneaks, tank to down/deack the town, troops on instant standby.
Double (or more) the number of troops or supplies for every application of them.
Off the top of my head. There are likely other applications the haven't occurred to me.
Wiley.