It's not the technique that makes me wary - it's that the way it reads is that you've built this because you found the documentation for existing solutions to be too complex which is a
massive red flag with regards to anything security related.
Essentially it sounds like "doing security is hard so we did something simpler and ignored the complicated parts we couldn't understand".
As you've explained it above that's clearly not what you meant at all so maybe edit the website to call out a bit more clearly what your reasons are for building this and what other people's complaints are about existing systems? (Maybe in one of those side-by-side feature matrices showing the benefits of your implementation?)
Will definitely check this out when I have some time though!