As the number of in-game familiars grows in length, there are more and more that are hybrids of one sort or another with abilities that are not easily classifiable. Familiar abilities are numerous, varied, and it is probably undesirable to have a category for all of them.
That said, I contend that having a content familiar category would be a useful way for players who use mafia to manage their familiars. Many of those who are looking for these familiars do so for the drops. Secondary abilities such as +stat, runaways, +items, and +meat are quite nice, but grouping them as content familiars helps better organize them and makes them more findable. For example, the Rogue program is a spleen familiar that does MP, not an MP familiar that drops spleen. (That there is no category for MP familiars---most of them are classified as combat familiars---might be a reflection of the needs of the mafia user base, but with the content familiars, I think that many would find such a feature useful.)
There are currently 15 content familiars and no doubt more to come. Moreover, with the content restriction on active challenge paths, players are more likely to turn to the lists to search for new options. Favoriting is a rather imperfect solution because it creates a long vertical list when one is not under restriction.
That said, I contend that having a content familiar category would be a useful way for players who use mafia to manage their familiars. Many of those who are looking for these familiars do so for the drops. Secondary abilities such as +stat, runaways, +items, and +meat are quite nice, but grouping them as content familiars helps better organize them and makes them more findable. For example, the Rogue program is a spleen familiar that does MP, not an MP familiar that drops spleen. (That there is no category for MP familiars---most of them are classified as combat familiars---might be a reflection of the needs of the mafia user base, but with the content familiars, I think that many would find such a feature useful.)
There are currently 15 content familiars and no doubt more to come. Moreover, with the content restriction on active challenge paths, players are more likely to turn to the lists to search for new options. Favoriting is a rather imperfect solution because it creates a long vertical list when one is not under restriction.