I'm going to take a crack at what was upsetting you (heard somethings through the grapevine). I'm not trying to convince you to come back; that's completely your decision. Just want you to get a good idea of how somethings work for better or worse.
We're a rvr focused alliance/guild. Most of the stuff we do is rvr based.
That being said, a few of us do try to do some pve dungeon runs to get geared, but these are fairly hard to get started. The ones that are consistently ran are ran by a solid, persistent group of 5 or 6. I myself, rr 77 wp, have a hard time finding TOVL runs. In the end, I'll probably have to start my own.
As hard one can try, LV and TOVL runs are EXTREMELY hard to set up and running within a couple hours. It's almost unheard of. The closest I've seen someone come is a pug leader asking in Altdorf general chat (/1) for players to join him. Even if he/she is successful, the run will be extremely difficult and hard due to the fact it's a bunch of pugs. In general an alliance LV/TOVL decent group takes a week of planning (contacting players, setting up a time, scheduling, etc). A VERY good group takes probably a month (to recruit high rr players from other alliances that are looking for tovl, making sure everyone has the right gear/mindset, vent information, etc).
The above is true for ANY guild/alliance, though I'm sure the pve based guilds might do these a little more often.
If the above wasn't your concern, sorry for butting in. I just liked you and will miss your heals in our rvr wb's.
No matter what, you will always be welcome back if you decide to do so. Good luck to you wherever you find yourself.