Having a complicated wallet or addresses are the root of all losses of those people who are using it. When you want to be secured with your wallet, try to make your account, easy to memorize and remember so that you will not have a hard time sending or receiving money in your wallet. Some of those people who have a harder and longer bitcoin wallet address are prone to losing their money that's why it is not necessary for your address to become long and hard to memorize. Make it shorter, so that you can make your address highly secured compared to those who have long and hard to understand account. Those wallet that you have stated have different issues and problems in their platform and it will surely not that easy to become prone to that.
Sources? This entire post is full of bullshit.
I doubt anyone on this forum actually remembers their Bitcoin addresses at all or are even trying to remember as they use different addresses for each transaction. There isn't actually any way at all to intentionally make Bitcoin address longer than it should be or has anyone actually attempted this at all. Using a wallet is actually quite easy; it takes a day max to thoroughly understand the entire wallet unless you're computer illiterate. The main issue with users losing coin is usually due to hacks, the wallet's negligence and/or compromised wallets.