My point (though reading back I see it's poorly made) is that there is no absolute limit for a 152.
The demonstrated crosswind limits are also different between the C150 and C152, the operative word being again demonstrated. There is no absolute limitation, shown by the fact that crosswinds aren't mentioned in the limitation section.
You are making my point for me too. Each pilot has their own limitations that they are comfortable with. Sticking something into a flying order book that is so unneccesarily limiting as a 12kt crosswind limit in an aircraft that is far more capable (especially given the fact that there is an FI onboard) is a joke.
Break the FOB then you are in for all sorts of problems if an accident or incident occurs.
Why put in a silly rule like this that will simply cause problems?
I've landed 152's in significantly more than 12 kts direct x-wind, without a hint of an issue. I've had students do the same with nothing more than a briefing and the odd word of encouragement, they aren't exactly beasts to handle!
How can you teach someone to use their own judgement when you are limited by the Flying Order Book to this extent? If it says thou shalt not land in >12kts across, then, thou shalt not.
A silly rule for many reasons.