Well the infrastructure is getting better on the one hand, but the main reason that people lost interest. Once the price crashed from $20K to $9K, a lot of people lost interest, cut their losses and sold off their coins, so there are fewer transactions right now. Let's see what will happen once the price starts rising again and reaches, say, the $15K level.
900 is really low, I was checking it two days ago and it was 6000. Still, I am afraid that your diagnosis (lost interest) is true and I can only hope that the cure didn't kill the patient. I hope, that is, that the interest is not lost permanently because people had been dissapointed in Bitcoin.