Voyant tools is a site that allows people to examine the main contents of various texts. With voyant tools you can see things such as how many times a word is written in the text and various other tools to view the text look at how words are connected and such. we can see patterns far more easily in the texts we look at so it is helpful for that but this site seems to be rather limited in how much it can actually help with studying a text. although of course historian’s have to do their own work and closely examine texts to get meaning form the existence of the words there and they have to think about it and figure out why those patterns that exist actually exist and if it is just a coincidence or if there is something important behind it. so Voyant tools does do the job it was made for to display important things in large texts but the actual uses of this is rather limited should really only be the starting place for any serious text analysis.
So I would say yes Voyant tools does help as it can be useful in some cases and when not it would just be left unused. but as to whether it gives us something new I would say not really as it does give a new and easier way to spot patterns and connects however it is not something that couldn’t be done by people it would just take far longer to collect the data that Voyant displays in a matter of seconds. As this tools speed up a lot of grind work for historians analyzing the text it does cut out a lot of repeat reading to find those connections but it still requires the reader to go throw the text thoroughly to come up with any meaningful conclusion or argument and thus I don’t think it has negatively affected historians reading skill but simply removed some of t he grind work they were forced to go through in the past.