a) figs from a young tree taste different from the mature tree (true of clones of the same tree even). The taste will change as the tree matures. Across the board. Mature roots, trunks/limbs, foliage and tops, etc.
b) ripening conditions matter too. Especially if the weather was becoming marginal for ripening at the time these ripened. But any weather differences (amount of sunlight, amount of water/rain, temperature (especially temperature).
c) all kinds of culture differences matter too. (soil, nutrients, amount of water, etc.)
Variables like these affect all varieties.
Mike central NY state, zone 5a
p.s. welcome to the forum.