I dont see that complaining about rules leads anywhere possitive. Im comfortable that sprites in matrix behave the same way as Spirits in astral...even resisting sumonning/compilation. Thre is not too much said on the nature of sprites, free sprites havent even been introduced to the characer possibilities in RC, no physical manifestation yet, so I believe we will have a lot of it comming. That optional rule you mentioned about Imunity to normal attacks sounds completely sane to me...only...when you do magic, you have only Awakened and mundane, one of them can do magic, another cannot. When it comes to matrix, you have Emerged and normal. Both can do matrix, well only emerged can do resonance. Well resonance is overlaping with matrix so there is something magic do not have to solve. Im currious about the further developement.
BTW:
I personally spent more than 500 USD for SR4 or SRA books and I would be quite happy if they remain usable a bit longer...buying that again for the new editions would probably make me unwilling to continue with the game...