I had similar problems in the past. There is obviously no right or wrong answer. Design is always subjective. And it did happen to me several times in the past that someone asked for something like you did now, I changed it and I got several emails from people saying why did you change it, it was better as it was before... I am sure you will find people like you, who would like it bigger or think that a box around it would be nice. But if I were a normal MT user and the developer changed it, I would say, hey, can you put it back? I think it was better. And this is again not to say my opinion is the right one, but it is likely that such opinion is not just mine. I just have to choose one or the other and in some cases, like this one, it is really sort of 50:50 and then all I can do is choose myself.
It was different yesterday for example, when I said Im not sure I want to do an SPC block given how problematic NWS blocks are, but I did it because either you like such block and you use it, or you dont and you dont use it. But with this, it would affect everyone.