Yes exactly. Going further than that they may even choose a lower density for cost reasons. Elon responded to me about this when I tweeted him about LFP which

Yes exactly. Going further than that they may even choose a lower density for cost reasons. Elon responded to me about this when I tweeted him about LFP which have worse density but a lower cost, better thermals and safety. In China they are going to use LFP on the low cost SR+ Model 3.