Why is it so difficult to find an English teacher on italki?

I know it might sound kind of aggressive, but I feel really disappointed right now, so I will tell my story as I complain bitterly (if you are not interested, please don't waste your time reading). (I am witting this only as a student).

My husband and I are English learners, and he has been searching for an English teacher (this is more of his story, actually)... He booked trial lessons with 3 different teachers. The first teacher sounded good, but he (my husband) wanted a more organized kind of lesson. The second one was very good, it was a little bit awkward that the teacher didn't turn on his camera (but he offered to do that if necessary, so no problem). The third one was friendly and gave him a nice lesson, so we were really happy thinking that he was the best teacher. At the end of the lesson he proposed different strategies in the future for my husband, so everything sounded great. I even thought of booking a lesson for myself too, because I really enjoyed listening the conversation and the teacher's style...

That lesson happened yesterday... and what a surprise today, when my husband sent him a message asking which of his professional lessons suits better for him?...

The reply left us speechless:

"My pleasure, thank you! I actually think you'll be better off with another teacher, but thanks anyway and good luck!"

We have been wondering for more than an hour: 

Did we offend him during the lesson? Why that sudden change?... His feedback for the lesson was a simple "Thank you"... so that doesn't help a lot either... 

We want to ask italki teachers:

Have you ever refused a lesson from a student? 

If you have, Why? What was the situation like?

We will appreciate if you share your opinion or experience, thank you!