Nice excuse. But just wholly untrue. Most of us have not had any of these faults in years. Zero. I cannot even remember the last time I had one. Or even saw one.
It is just possible that it is particularly harder in the hackneyed dialect of C++ that Google coders are forced to use, but that is doubtful. The fault does seem to be particularly associated with Google, although old Mozilla code seems similarly afflicted.
It is probably connected with fooling with actual naked pointers, and transferring ownership according to more-or-less documented conventions, as opposed to never needing to document it because it is simply never done, and never needs to be done.
The skill level of Google's in-house coders, as for Microsoft's, has seen plenty of boosterism, but the numbers don't lie. Neither place is a habitual producer of code to brag about. Having worked there should not count in your favor in an interview.