All business class tickets will also allow advance seat selection, aswell as econ fully flex. So together with plat, gold, emerald, sapphire quite a few people will get this "perk".
And in the front of the plane, same-ol' same-ol'...
Anyway, I am all for charging for seat selection, as it is a thing people seems to be willing to pay extra for.
The site says 2 thing that I find odd
You can select a seat via the Select Your Seat service free of charge in the following cases:
The booking class in your ticket is Y, B, H, G, A or X.
...
G is AFIK EconomySaver, one of the lowest fare classes around. Must be a typo, or some re-arranging of classes are about to come?
The fee is non-refundable if you cancel the flight, are involuntarily upgraded, or in case you are not suitable to sit in the seat type selected.
The fee may be refunded if you are voluntarily upgraded or if you cannot be seated in the reserved seat or in a suitable alternative seat due to Finnair.
They must have gotten the involuntarily/voluntarily mixed up, right?