I am not an expert either, but have traded options for years. My understanding is that this situation usually happens when there is not a high volume.
IMHO, because of this unusually low premium (almost with no time values for almost two years of time), it is a real bargain for buyers of these leap calls. Of course if you don't believe the success of either L or D, then don't buy any leap calls. In addition, time values are relatively insignificant for in the money leap calls compared to out of money calls!
I have lots of leap call options at strikes $3, and $7 along with a very large number of shares.
Nonetheless, things can change very quickly, making leap options very expensive.
The last I want to say is that compared to the manipulation of shares, option manipulation is more rampant!