Probably. I just had another crash today. They mostly occur now on shutdown or restart. Luckily those don’t happen often.
The SMART data is as correct as Apple makes it. Apple designed the NVMe SSD controller in the M1 SoC and wrote the software APIs used by the SMART tools. I’ve verified that the tools are correct by writing a very simple version of the SMART monitor command line tool. It uses Apple APIs exclusively and gets the same results as smartmontools command smartctl. You can get it here:
smartTBW.pkg. If you want to look at the code, that is here:
smartTBW code.