I've done what you're thinking of doing with the MMD. TSLA tends to follow technical supports and resistances fairly well, so if it's at a support, buying a call can work out. What I've found is that it can also go against you pretty easily, and there's little recourse when buying. If you're day trading, I've done pretty well just watching the stock bounce around 4-5 points near resistance or support. Many days once the stock settles down it just stays in a tight range like that.
If you're looking to limit your risk, I can suggest 2 options for my not-advice. The first is what you're suggesting, just buying calls. Your risk is what you paid for the calls. That's fine, but if the MMD doesn't reverse, you don't have much of a recourse but to take a loss. Time value is against you when buying options. I imagine that's a reason most of the people in this thread are selling options rather than buying; you win even if the stock does nothing.
The second way to limit risk in your example is to sell a put spread (BPS), which is selling a put, then buying another put at a lower strike price. Eg, sell the 705p and buy the 695p. That also limits your risk to the spread amount (10 x 100) - credit on the spread, but you get the benefit of winning even if the stock price just sits at 705 for the rest of the week. Also, you have the option to roll the spread to the following week if the stock price drops beyond what you think is reasonable. Selling a 100 wide spread like most of the folks on this forum are doing (as am I) is functionally the same risk as selling a naked put, unless TSLA drops over 100 points out of nowhere, so keep that in mind.