I subscribe to this philosophy, but unfortunately simplicity is surprisingly difficult for most software devs. It's because if you don't have the tool in your toolbox, you won't even know it can be simplified.

I once did a code review for a function that parsed some Linux file for Ethernet stats. It was incredibly convoluted with tons of substring finding and indexing. I told the author to simplify it and he declared he already had and it was as simple as it could get. I then showed him of the existence of regex and his mind was blown.