you actually can get exp faster crafting at higher levels, but, due to the lack of crafting parties, and leve linking, it doesnt compete,
but if you do a craft thats like 8 levels higher than you, which is usually a pretty entertaining craft, even if you barely lose, you will get like 260 exp, and if you succeed you ll get anywhere from 700-900 exp for a craft that may have taken umm maybe a minute and change. I now, only do leves that are the highest available for that craft, because you can get like 1k+ on a good leve that level, and usually like at least 600+ on the easier ones.

but most people prefer easier crafts that they can spam standard and win most of the time, and get consistent exp with less failures and less attention.

I prefer harder crafts, more gamble more reward more difficulty.

that said, the it starts to get really hardcore with the tnls when you get high level. only people who really want to craft should take it up high.