Newsom effectively wants the Dems to be less progressive. From my perspective, the Dems continue to lose because they continue to shaft their progressive constituents, of which there are many.
Things have shifted so far to the right in the US that mainline Dems would be considered conservative in many other countries of the world. The US does not have a left party, progressive or otherwise. If you accept this, then it's easy to suggest Newsom is just one other centrist masquerading as a leftist. His claims here support that view.
There are many, many other reasons not to like Newsom, but ultimately he is a symptom of a much deeper problem.
These kinds of projects are basically always impressive, in particular on machines which predate the concept of protected memory. It is especially impressive on this machine.
For anyone who may not be familiar with the TI-99/4A, it is a strange beast. It competed with 8-bit micros like those from Commodore and Apple. On paper, the TI-99/4A looked more impressive because it has a 16-bit CPU, but the machine is effectively limited to 8 bits anyway due to supporting hardware and logic elsewhere. The weird design backfired, because it's ultimately a very slow machine and obviously less performant than those 8-bit machines against which it was meant to compete.