Sorry, but I have to completely disagree. They have been planning a completely new reservation system for over a year. They talked about it at D23 last year, and stated that it would be rolled out later this year. They are adding the capability to do park reservations, and moving up the timeline for release, so that it can be used once the parks are open.
As far as removing all of the TS reservations, well, they had to do that, as in all likelehood, there were already to many reservations to handle if they could only open with 25% or 50% or even 75% capacity. So how do you make it fair for everyone again? You cancel them all, and then at 60 days, people will be allowed to remake their ADRs, and their system will know exactly what the capacity is, so as to not give out too many reservations. If they hadn't removed them, how do you decide who gets to keep their reservation, and who gets bumped? Better to be fair to everyone to start over.