it's a interesting concept. Instead of just saying "no" let's have an actual intellectual conversation. Let's look at the risk/skill vs reward. Curry and Illard have both shot an insane amount of 3's from 32+ feet when they were on fire. Curry, being the best of all time, shoots the most effective 3 in the nba. The ongoing joke/stat is which everyone says is "his 3 is easier/as easy to make as most people make dunks"
The above being said, it would be really interesting to see if they could push back the line to say 30 fit, because the average fg% from 30+ feet is dramatically less than at the actual 3pt line. If they did this though, they''d have to completely remove corner 3's or make all the nba courts in the world 5 feed wider.
In my opinion, if all these changed were to take place, it would eliminate the incentive of most people even learning 3 pointers. because the average 1st team NBA player's 3pt average is already low at around 40+% being godlike, 30% being GREAT and 20 % being bad. It would create a need for the ability to finish down in the paint and i feel like the game would be based around fouls like in the old days of pounding the paint and penetration offense.
What i reallly think they should overhual is the ref system. 9/10 games i hear the refs u suck chant. ALmost all other sports have a super simple system of reviewing the tapes and making the decision. Having 3 refs not calling anything when it happens, then calling the wrong thing when it does is ridiculous and old fashioned. I'm not saying this is an easy thing to solve, but it's sure not great the way it is...
PS i think halfcourt shots+ should be 4 points. It's the most telegraphed shot in the game, the hardest to make(especiall under pressure) and it would create incentive to practice and create a meta around it. I say this but we still have guys who cant make freethrows in the modern game.... if a 3 year old can practice it and get higher than 50%, a big time allstar should too... Cough howard, shaq, deandre jordan....