Pools are being lazy, but the other reason could be that whales need time to accumulate positions. Once they have them, flip the switch f2pool...
If I were a whale I'd pay me to STFU.
F2Pool just signaled and LTC exploded from $6.4 to $7.5 on huge volume. This will put segwit at 55-60%. This will leave two more main pools needing to activate to get there. My guess is the whales will form new bases and pump before each subsequent pool activating.
I think LTC has a new base at $6+ now. This sets it up for another pump to $10 (which will be the highest price it has been since the 2013 bubble), and then either BW or Batpool flipping the switch putting us on the brink of segwit. The FOMO will get unbelievable when we are sitting at 70-71%.