Keep in mind that everybody is trying their best
I believe that every Aikidoka is performing Aikido to the best of their ability according to their personal level of understanding, knowledge and expertise at that particular point in time.
If they keep trying to improve they can do nothing but evolve, grow and excel.
Sadly it is the ones who feel that they have learnt it all that stagnate, and have a tendency to obstruct others around them from evolving, growing and excelling.
Progress/Regress, which one do you choose?
Enjoy the journey