I don't really mind the treebreeding, really. I've dabbled with it a bit on creative, and it's quite simple to do even with just standard forest and meadows bees. I was breeding Apple oak with Balsa to get the 'triple' sapling trait onto the oaks, and got that within an hour. 3 of those super-oaks then gave me 50 saplings
With that in mind, I quite welcome the change, as triple sapling, high yield sappiness apple oaks in a multifarm is going to be absolute bonkers.
It's that damned fertilizer requirement that gets to me. At first, I figured I could establish a mine in a mountain biome, and just return to that whenever I'd run low, but even with the huge deposits, the spawns are just too rare... I actually dug a tunnel straight through a XL biomes red mountain biome without finding a single deposit :\ Ended up spending several hours jetpacking around the cliffs outside instead, and ended up with quite a lot of apatite (found 4 deposits), but it was an extremely tedious and boring process, not something I'd look forward to revisit the next time my apatite stores run low.
Anyone here versed in modding that could bring back the old fertilizer recipe in a modmod of forestry? I'd play the heck out of that!