I know many Rabbonim who have negius to what Hashem wants and won’t be meikel or give a heter when its really against accepted Halacha. In my experience the people who complain against Rabbonim are usually not the ehrilche people looking to be oveid Hashem.
I’m not saying every Rav or any Rav is perfect they aren’t they are human beings who are trying their best to make sure the Torah is upheld in a generation where people want heteirim and segulos and easy ways out.