I kinda like that philosophy, and didn't realize that I somewhat adhere to it: I tend to try to keep to tools I'm familiar with when I'm solving problems that I know are new to me. It lets me focus on the problem and avoid thinking too much about the tools. But if I'm in learning mode or need to implement something I understand well, I'll often reach for a new tool just to play around with it or try something different.

Perhaps I could rephrase it as being conservative in my technology choices when building innovative products.