They still have normal pp costs. The first image shows the restrictions on the purchase of doctrine abilities. For the 2nd table you can have 8 total points of abilities.
Ex.
2 (T3) + 1 (T2) = 8
or
1 (T3) + 1 (T2) + 3 (T1) = 8
The levels in which you will unlock things will be reworked. We haven't finalized how that system will work yet.
Interesting, so it allows a lot more customization to your company and will make two of the same type of company possibly different.