I honestly don't think this is truly a thing done in the name of accessibility though. Learning that Larian is putting in a bunch of items specifically to make multiclassing easier and saying as much publically makes me think that they just WANT people to make absurd multiclass combos. It would fit in with their philsophy to date of stupid, crazy things being the most fun and encouraging those sorts of things (see for another example, all the items to buff spell attacks but the various nerfs to support and controll spells).