The impact on clerics is due mostly to groups now thinking "elite or bust", without any regard to whether they can handle at elite given their level/experience/gear. I've seen more "XXX elite, guide needed" lfms in the past month then ever before. I guess the idea is that it doesn't matter if the content is over your head, a healer will get you through it.
Simple. Avoid these groups. Or suggest that you'll join them for a normal or hard run instead. Some groups are up to elite, other's aren't even close. If truly want a healer, they may say yes. If they say no and insist on elite, you know what you need to know. No one can make you blow through tons of resources on groups playing way over their heads, except you.