If they can get as big as Binance in terms of volume, one day they'll be a tough competition, for now, they get to stay on the "alternate lists of exchanges".
Cobinhood is more likely to collapse one day than to even account for 10% of Binance's volumes. It's ridiculous that you even compare Binance with an utter crap exchange that hasn't done much to gain people's trust.
These exchanges usually heavily inflate their volumes to artificially keep them above a certain $$$ range. If they don't do that, it might very well be that their daily volumes sink deep below $1 million, and that will cost them users.
I won't call it a scam exchange since they don't (yet?) seem to have a tarnished reputation like Yobit, but I wouldn't ever recommend others to use that exchange either.