At 99€ it would have massively lower user numbers. It's already to a large degree a commuter ticket at 49€ - at 99€ alternative tickets would be the better choice for many.
In any case, the point is that it is not clear to me what actual need this fulfills.
On regional trains you can travel Germany from north to south in less than 14 hours with 5 changes as opposed 8 hours with 2 changes for 125 EUR one-way on long-distance trains.
With the 49 EUR/month ticket you can hop off the train anytime you are tired of the journey. Can't do that with the 125 EUR one-time, one-way long-distance train ticket.
I totally see young and elderly people do this on regional trains.