Also Apple recently removed a data recovery connector on the motherboard which was used to access the ssd even if the rest of the board was dead.
https://www.pcmag.com/news/362635/data-recovery-connector-re...
https://www.pcmag.com/news/362635/data-recovery-connector-re...
https://9to5mac.com/2018/09/20/apple-t2-data-recovery-transf...
Apple has recently documented a new data recovery process internally for Macs that utilize its T2 chip introduced with the iMac Pro and the 2018 MacBook Pro. The new process for repair staff is being introduced due to the T2 chip’s advanced security features including hardware encryption for SSD storage that isn’t compatible with Apple’s previous data recovery methods used on older machines.
PCMag should update their article.