It looks like bitcoin transactions have returned to the new normal again since the Segwit switchover. You no longer need to pay $10 USD to get a transaction through in a reasonable amount of time and the queue of pending unconfirmed transactions have dropped back to normal levels.
actually it has not. i don't know what the numbers were by the time that article was written but currently the number of unconfirmed transactions is about 25K and that is not the normal level. the normal level is around 2K-3K.
despite that, transaction fees have come down a little which shows most of this is a spam with very low fee that is residing in the mempool for longer time.