I agree. Or is it maybe that their journey made them more mature? Idk I thought Hilbert would have more of a cool personality while Hilda would be more relaxed and spontanious.
But i dont think they could reach the same fan base as Red seing as how Red has been around since gen one and staring in two greatly recognised manga. However Hilda/Hilbert imo isnt as iconic and even so with 6th gen sweeping in, attention is probobly going to be taken away from them quickly if not already.