1st things first, if she is happy and sleeping through the night going off to sleep at night fine etc... I wouldnt meddle with the naps, if it aint broke dont fix it kind of thing. Sounds like you have done great and I dont think its because you have trained her that way, you just have a great balanced routine
You second Q, I think it is normal to be disinterested in toys when they get mobile definately. when Abbi started to crawl lack of toy interest started straight away. She is back into them nbow, but its just a phase, everything else they couldnt get to before looks so interesting now, like opening cupboard doors is sometimes amazing to them (it is in this house anyway)
As I said I think you are doing great! If she starts nw, or not settling at night I would change things but not now when things are perfect!