Yes they are, however, blockout days of April 9 through April 23, 2017 apply for those cheap tickets. Also, seems like yesterday was a blockout date for SoCal Annual Passholders (both Select and reg SoCal). Add into that it was a peak pricing day for 1-day park tickets and so the only people you have are passholders Deluxe & Up plus tourists on regular priced multi-day tickets.
I went back a day before to Sat April 8th too and saw it was 7's but the cheap tickets
you mentioned were still eligible. However, it was a blockout day for Deluxe passholders in addition to SoCal passholders & also a peak pricing day for 1-day tickets.
Also, because of a dramatic increase in CLs (something like 28 of 43 days were 10's earlier this year), Touring plans did adjust their scale for a second time in a year to better distribute when crowds were least busiest (1) to busiest (10). So while you see 5 for Sat it is what a 7 felt like earlier this year but if there are never any 1's or 2's appearing on the scale then they need to adjust so that for someone who is looking for the least busiest days to go sees when they are, even if under Touring Plan's old system that 1 was a 3. This adjustment was recent so it's making it look like CLs are slightly down, when it's more likely they have maintained and TP adjusted (just for DLR though, not WDW).
Lastly, I do think there is something about the pricing, people are looking to go when it's a better deal and "supposedly" not as busy, but (most) everyone else is too so it ends up creating a busy time. Whereas peak times that are priced higher are now seeing (slight) relief in crowds, which is exactly what Disney set-out by going to a peak pricing/blockout tickets approach- better crowd distribution.