I definitely think the update has made it easier for casual players and even rushed players. My clan is full of people with low level heroes and walls, all sub 15 heroes and level 7-9 walls. We have had 2 nearly perfect matchups since the update. Nearly identical wall and hero levels across the board, along with similar defensive levels like it previously was. Pre-update, we would get the occasional war where the entire other clan had level 9+ walls and 20+ heroes. I'm not saying if this is a good or bad decision by Supercell to change weighting after more than a year, but it certainly has changed things and maybe even hurt players who previously maxed walls and heroes.
bad update for clans and players who max heroes and walls
In our clan we focus on grinding through the game so members max the walls and heroes before upgrading TH. We had 2 wars since update and BOTH are gross mismatches that we have never seen before. We have 4th10s and 2 maxed th9's with 3 8.5's and we were matched against a top level clan that had 6 TH10s and many more th9s than us who are all around better upgraded than us.
I think this update has made me rethink about who to hire in the clan. I'm thinking it is bad for a clan now to accept a guy who maxed heroes and walls - which is kind of sad because it punishes good players who want to do max things in game. Just a few thoughts...
A better way to look at it is like boxing. It is like matching two people with the same weight class, but one is tall and has a long reach, while one i shorter and has more muscle mass. Some people will say it is not fair because the taller guy is not as strong and will be overpowered, while someone else will argue that the taller guy has an unfair advantage because of his long reach.
It seems supercells idea was to nerf air attacks some which would increase the use of ground attacks which increases the value of having strong walls and heroes. It was a logical change, though they may have over adjusted the weights a little bit for some peoples liking. From my experience we have had pretty even matches after the update, but we may be in the minority.