The TTF shown is the estimated average time to find a block at full pool speed. As the speed of equihash is split, you have to hover over each coin to see the average time for the allocated hash.
I also have a question with regards to equihash. The estimates always hover around the 4 mbtc/kS/day mark but the 24 hours actual on the right hand side is mostly under 2. Is the pool just really unlucky or are the estimates inaccurate?