There are quite a number if blockchain algorithms that are pretty unique and innovative if you take out the time to read them.
New innovations are always.
And while there are some wide reaches and sine fairly successful ones which I don't quite like, we should always encourage new designs.
I actually wanted to write that myself
I might just add, that the nature of human innovation is a "trial and error"-based search for best solutions, so be easy on the concepts that don't fulfill all their promises at once.
Not to say, that Bitcoin was not the first ever idea for electronic cash either - there were other ways to do that before, they were tried and tested in real life and bitcoin took parts from them and connected those parts in a new innovative way.