Your article only accounts for about 7.9 million new shares from the secondary offering, but many more have been issued.
It's primarily from equity grants. Even your article says Musk tacked on his stock option exercise as part of the secondary offering, which increased the dilution.
Tesla’s stock behavior is due to the ongoing game of “who blinks first” between TSLA shorts and TSLA short-squeezers. With $10 billion short position the company’s fundamentals are reduced to a side show.