Without seeing the overall context (time period, circumstances, other related stats eg is it comparing to destroyed and abandoned vehicles?) it is very hard to comment. WW2 tanks were very unreliable in general, and could be taken out of action by very minor repairable damage. But if the crews or repair teams didn’t get a chance to effect those repairs, then the vehicles would be lost.
In Normandy, the units equipped with Panthers and Tigers achieved operational rates of 50 to 60%, as long as the front was fairly static. Not hugely worse than BAOR Regiments equipped with Chieftans:) But yes, I can well imagine that a high proportion of vehicles lost at Fala is were abandoned with mechanical faults.
"Mistakes in the initial deployment cannot be rectified" - Helmuth von Moltke