Honestly man, I think this will get better in S2. There’s a ton of pve content that people want to do/focus on and the honor grind is long and unfulfilling, which is unfortunate because if you want to push rating your healer is going to need resilience. Most healers who were set on pushing rating likely already had their group figured out before BC even released. I also think it will be easier to find people towards the end of the season once they’ve got their pve bis and are tired of the raids this tier. I also haven’t seen a single person in LFG looking for an arena partner, it’s just not a lot of peoples priority right now.
Your best bet is to find someone in your guild. If they’re not good then just struggle with them while they get better and learn. I’m playing with a first time resto druid (rerolled for BC) who has cloth gear and like no resilience, just doing games each week for points to eventually get some gear to compete.