As the gemara states, when takanos are issued, the Rabbonim wait to see if they can be adhered to by k’lall yisroel. It is very difficult for k’lall yisroel to change their character all at once, nor does chazal expect them to, since as the mussser s’farim advise us, change doesn’t work unless it takes place a little at a time.
Once the takanos have evolved and have been accepted and followed, they become part of the minhagim which bring us closer to Hashem. However, while the takanos may be too difficult to follow at first, the message is not lost by frum Yiden.