I completely agree.
Test drives are super valuable. Everyone who's driven (or even just sat in) my Model 3 has loved it and talked about wanting one. Tesla should be doing everything they can to encourage test drives.
That said, it is worth noting that the announcement doesn't explicitly say that Tesla's getting rid of test drives. It implies that test drives will no longer be needed, but it doesn't actually say they won't be offered. So it could be that Tesla just wants to emphasize their permissive new return policy and is doing it badly. I wish they'd be more careful about stuff like this though.
I should also probably mention that while I think Tesla should make test drives readily available for anyone who wants them, I did buy mine without a test drive. I had never even driven an electric car before!
When I bought it they were still scrambling to fulfill reservations so there were no Model 3s available for test drives. It was a big risk, but I knew I'd made a good decision the instant I rolled out of the service bay. 😄