Looking back the events, SH may really in a serious take-over talk with M1, that was why it was not very aggressive in capturing the market. But guess eventually the bid is really not enticing enough for M1, so it came out with Plan B, Eight. That was also when M1 was no longer quite keen on number game, that was when CL and Maxx Basic Plan $0 plans were to be no longer available. Meantime, Simba came in for the bid, that was why Maxx Basic Plan $0 was indirectly reinstated but CL $0 plan was just irreversible. The rest is history.
But just a guess of the whole saga, whatever really happened is anyone's guess.