It's encrypted using the T2 chip (with a key that can't be extracted) so I'm not sure what value getting a copy of the SSD would be. The 2016 MBP did not have this encryption.
I'm pretty sure it can, just that the methods are (currently) beyond the reach of DIYers.
Besides, there's probably easier ways... like tapping into the decrypted data. Like any classic DRM scheme, if you have the key and the algorithm, you can get the content. That does not make it easy, but it can certainly be done with enough effort.
That would be very huge news worth many millions of dollars as it's the critical piece of iOS device security.
Once, with one brand, in 2010. And it took 9 months.