In general, the problem is with supportability and unknown side effects of configurations. In this case, it seems straigthforward and you can do the changes. But remember when you patch VIO this change will get overwritten. But we will also fix and make the same change as you mentioned below so you will be fine.
In 2.0 we have established a mechanism were cusomter can recommend the config parameters they want to change and we can test those parameters. Once tested we will include those in our framework and you will be able to change those parameters without worrying about overwriting.