You could ... if you had a low end 32 bit integrated graphics laptop (that will not run 09, 10, 12 and T:ANE), like I do ... and if you wanted to share your TRS2006 route with other TRS2006 user dinosaur's (like me) ... And have no problem editing your WIP TRS2006 routes so they work in TS12 and T:ANE, and use 09, 10, 12 and T:ANE for testing purposes only
Sure if you have a ca. 2005 era machine or a low end modern laptop that would be a reason, however, editing and then loading a route directly into T:ANE does not work well. There are some extra steps needed due to the file formats, which makes the direct link from the past painful. For this I've used TS12 or TRS2010 to convert the route and once that's done the route imported fine.
As time goes on, like all programs, those in the past will be that much farther into past and more difficult to work with due to compatibility reasons. The fact that the stuff runs now, albeit, with some issues is still amazing. In some ways it's like running CP/M Plus or MSDOS 1.0 today.