Isn't it possible to create an option to allow us to add a specific miner if we want? I mean, the installed cc miner for instance is terrible for some algos...
you can do this. through SSH you can go in and install whatever custom miner you want. If it's that important to you then spend a couple hours, and it'll happen

I think you are missing point. Going in through SSH and installing a new miner is not so simple, is it? And there really isn't an excuse to still be running CCminer-tpruvot 2.1 when it is up to v2.2.3; at least update it to 2.2.2.