all speculation and guessing
i have one more, maybe its just one person and he/she had invested some time to make a working loader for 6.2.4/7.0 and as its working, all is documented and source is available there is no need to do more, drivers and other things can be delivered through other channels
and if there is need for more coding, all the documentation, source and forks can help to go on
i guess we are fine atm, working loader, source, documentation and next thing might be a pre-build loader or a (cloud/hosted) click and build solution to make it more accessible - either way the one doing this would be the one sticking his neck out