There is evidence that wine ages slower in larger quantities*, and it makes sense for quicker drinking wines to get into the bottle sooner. However, bottling early raises the possibility of having perceptible differences between bottles.
Wine undergoes chemical changes, rapidly starting with fermentation, and ramping down in post-fermentation aging. The first 6 to 12 months of a red appear to be the where the most changes take place (this is an anecdotal observation, not hard fact). After that, changes continue throughout the wine's lifespan, but at a slower rate.
I was resistant to the idea that bulk aging for any length of time is necessary. Aging is aging, right?
Nope. I became a believer.
In this thread I detailed how one bottle stood out dramatically from the remainder of a kit wine batch. The TLDR is that one bottle exhibited strong kit wine taste while those opened before and after did not. I have no explanation other than that I bottled quickly so that one bottle developed differently than the others. While not proof, when taken with the experiences others have posted, I'm doing more bulk aging for all wines.
* an article in Wine Spectator circa 1988-1990 about old Rieslings noted that bottles surviving from the 1700's were all large bottles.