Looking at the new balance changes to wrecks, I think the balance team might like an idea I've had for awhile.
Essentially, wreck value is too high and wreck hp is too low. Generally, in t1 land battles, most wrecks are destroyed by T1 artillery firing and damaging them when attempting to shoot nearby units. This results in only a tiny proportion of wrecks being reclaimed.
However, this also means the individual varation is quite high. In some battles, you'll get lucky and have most of the reclaim, but in others there won't be any left at all.
Amusingly, this has always been why naval wrecks were OP: They sink to the bottom of the ocean where stray bullets cannot damage them, so that mass is never simply destroyed.
The solution to this is obvious: buff wreck hp and nerf wreck value.
I think, on average, wrecks spawn with twice as much hp as the unit had when it was alive. Increasing this to 5x or 10x will greatly reduce how much wrecks are destroyed by incidental fire (and make it harder to kill them on purpose). Obviously, this should be paired with a reduction in default wreck value from 81 percent to maybe 30 or 40 percent, as more wrecks will survive longer.
And of course, nerfs to wreck value can change the calculation of rebuild value, and how some maps with many wrecks are played.