Sneaking to a base is strategy, which IMO doesn’t need to be nerfed.
It’s a good trade-off; you lose a lot of mobility and speed, but in return it gives a lot more stealth options.
When you see someone sneaking in your base, you can always hit them with a weapon or any other item to find out if that player is an enemy or not.
Lastly, the current Cubecraft version is 1.19, while armor trims are a 1.20 feature. I doubt Cubecraft is gonna update AGAIN for the foreseeable future.