The module works just as fine on the Porpoise as it did before. In fact, it works better now that it allows you to use another module alongside it and still have +2 warp core strength.
Porpoise can use 5 mining drones with the module, the only downside is that it cannot use 5 medium drones anymore with the module and is limited to 5 small drones. But on the upside the Porpoise gains the possibility to use a damage control, drone damage amplifier or something else that it couldn’t use when it used 2 warp core stabilizers in the lows.
Warp core stabilizer is better on the Porpoise now. And yet I still wouldn’t use one.