I'd like to get a P90 Les Paul...

Fret sprout is due to wood continuing to season (dry out) after the guitar is completed.  The wood shrinks; neck becomes slightly narrower, but the fret wire retains its original length.  Frets don't actually sprout; they stay right where they were put--and the wood retreats from the ends.

This problem is sometimes due to improper seasoning of the original lumber, or more often it's the result of guitars being stored in extremely dry (air conditioned) environments.  It's the reason why high-end acoustics require humidification to prevent cracks, splits, and neck deformation.

Poor fret end finishing is a matter of economics.  Fret end finishing requires an individual human using tools to pay attention to each and every fret end, making it nice and round and smooth.  This sort of handwork adds immensely to production cost.  Every second a person has a guitar on a bench in front of them means less profit if the maker wants to stay within the same price point. 

So rather than increase wholesale price or reduce profit, they reduce production cost by installing the frets, slapping it on the arse, and sending it out the door.

It's here and it's possible the prettiest guitar I've owned. It's not very heavy. The controls are nice and firm. I can't for the life of me figure out how to add pictures from Android.

This is the one I bought...