This is exactly what I have in mind Nathyiel. The amplification and Multistrike trinket both scale with gear and stats and that is one of frost´s biggest issues. As long as we keep this kind of weird mastery (only affecting 2 - 3 spells) scaling will not be fixed and therefore trinkets like that are less valuable as for other specs/classes. This will have a negative influence to our gearing progress, because who will give this trinkets to a bad scaling frost mage, if another class will have a way better benefit?
Waterbolt and Icicles not stacking Wush 2.0 is a thing that need to be adressed, otherwise you get those trinkets just from bonus roll or if every other caster in the raid already has 2 decent trinkets.
Anyway, as it looks at the moment, frost seems not to be a viable progression spec in 5.4, just because of scaling. Sure, they can adjust numbers by buffing base damage and/or SP coefficients (would make frost ridiculously overpowerd with lower gear), but I´m not willing to start progression with a medicore spec that will end up bottom mid heroic progression. I´m @ 525 on my mage twink right now with no 4p and no meta, but the difference between a 525 and a 551 frost mage not that huge - just compare fire 525 to 551 for example.
I know we have to treat raidbot numbers with caution, but this gives an idea how bad frost scaling is:
http://www.raidbots.com/dpsbot/Overa...00000000000000
http://www.raidbots.com/dpsbot/Overa...00000000000000