Sooner or later the most of us will only fly online. The player will complain about tanks and AAA invisible in the woods and about players trying to escape while hiding low in the woods. So I guess the servers will switch off the trees in their settings like many DCS Server do, so we will not see any trees at all in CloD online. Thats just my own guess. Trees with hitboxes are possible, even for large areas, that proved RoF.
That realistic clouds are possible too, was also proved. For me these are two major setbacks, which I hope will be worked upon, any time soon.