Sorry for your ordeal. 63,000 amps as a peak current is not that much. I have two Siemens protectors in parallel mounted in panel - each rated 60,000 amps peak. The question is how they rated your surge, peak or average and if average then over what time (big difference in energy)?
When you get direct hit there is no ground wire capable of carrying to ground one foot wide plasma (likely your case), for smaller indirect hits protection is a must. I have every outlet connected to electronics protected twice - with in-panel Siemens large surge absorbers and local near outlet smaller absorbers.
The good news is that statistically this crap won’t happen to you again in your lifetime. Think positive.
