As long as it is implemented as a reference standard and not enforced, I think it is a good idea. The official tools are built into the standard PC build that new starters get, and inexperienced new starts would be expected to use it as company documentation will be optimised for the "company standard" tools. Experienced workers should be free to use what-ever they like as long as their output is 100% compatible with the company standard (so doesn't pose any collaboration difficulties).