One could look at this from the point of view of % bonus per DP. Working under the assumption all ships are correctly balanced for their DP (and if not, we advocate for that to be true) then skills like Crew Training and Tactical drills can be described as providing a 240*5% = 1200% per DP damage pool, that then gets spread out over all ships.
In the current Wolfpack Tactics design, assuming you grab the 10 officer skill and grab all Hyperions, it's not too hard to have 150 DP worth of Hyperions (and a 60 DP Radiant and 30 DP player cruiser, for example). In that case Wolfpack Tactics is providing 20*10*15 = 3000% per DP damage pool. Admittedly, a more modest 4 Hyperions deployment is the point at which you reach break even with Tactical Drills in terms of damage output. Below that, you're likely better off with Tactical Drills assuming you deploy 240 DP each fight and don't care about the PPT bonus.
In Thaago's proposal, were considering a 120% per DP pool per officer, but only to that ship. Which is a bit rough since that break even with Tactical Drills is at 10 officers assigned.
The 6% per officer in a frigate, applied to all frigates, starts off weak 6% to one 15 DP ship is a 90% per DP pool, compared to Thaago's 120% for 1 ship, or the current 300% for 1 Hyperion. On the other hand, if you go all in, you end up with 60% to 150 worth of ships (10 Hyperion), for a 900% per DP bonus (9000% total) which as noted is too strong. Even capping the bonus to 20%, and still applying to all frigates (officered and unofficered) would lead to 20*240=4800% pool, 4 times stronger than Tactical Drills and arguably more bonus than Crew Training, all focused in damage.
A DP pool by itself, while applying to only officered frigates makes it so you're incentivized to just put in the minimum number of officered frigates to fill the pool, i.e. use only Hyperions. A 60 DP pool with a +30% bonus, for example (1800% pool), just means you'll likely have 4 Hyperions and no other frigates.
You could try something like a scaling DP limit that applies to all frigates/destroyers, both officered and unofficered. Let's say the bonus is +30%, and applies to all combat frigates and destroyers. We'll also say the DP pool starts at 6 DP. For every officer assigned to a frigate or destroyer, the pool increases by 6 DP, for 180% per DP bonus per officer.
Assuming 10 officers and 1 main character, that limits the max DP pool to 72 DP with a 30% bonus, or 2160% pool, roughly 80% more than Tactical drills, at the expense of having no officers in cruisers or capitals. Break even point is around 6.6 officers in frigates. Numbers probably need to be tweaked, but you get the idea. You could also exclude AI cores from providing the DP increase, arguing they can't coordinate with the human officers as well, but since they take orders, have the bonus split over them.
This kind of scaling is easier to communicate than Thaago's proposal, since all frigates get the exact same bonus, so it's the same kind of display as Tactical Drills - it just updates as you move officers around.